Dynamics and kinematics.

How many times greater is the tensile strength of Kevlar fiber compared to nylon?
by Piano Player 20 hours ago | no answers | in Dynamics and kinematics

When did Isaac Newton make the three laws of motion?
by Answerbag Staff on May 19th, 2010 | one answer | in Dynamics and kinematics

Does a freely falling body have no force present in it?
by T4 on January 16th, 2012 | 2 people like this | 8 answers | in Dynamics and kinematics

Remember when Building 7 was hit with a few burning rocks and then crumbled inward to the ground?
by MrX on January 7th, 2012 | 2 people like this | 3 answers | in Dynamics and kinematics

Do you ever put more salt in the sea to poke your middle finger up at society?
by I am Loony on December 27th, 2011 | 2 people like this | 2 answers | in Dynamics and kinematics

If the braking distance for your car at a certain speed is 200ftand after reacting you manage to stop your car in 4.0s,the acceleration was?
by judymnu on December 11th, 2011 | 1 person likes this | one answer | in Dynamics and kinematics

Would you rather be struck by a 40 kg medicine ball moving 5 m/s or a 20 kg medicine ball moving 10 m/s?
by bostjan64 on November 4th, 2011 | 4 answers | in Dynamics and kinematics

Is science a science?
by Have A Nice Day on September 26th, 2011 | 3 people like this | 7 answers | in Dynamics and kinematics

F=ma...Must the acceleration be constant for this law to work?
by Inddiggo:)) on September 19th, 2011 | 4 people like this | 10 answers | in Dynamics and kinematics

Acceleration on a free fall object (90 degrees) always 9.8 m/s, right?
by Dio_G on September 15th, 2011 | 3 answers | in Dynamics and kinematics

In a free fall kinematics experiment, should the margin of error for "g" be calculated as an error percentage or percentage of difference?
by Dio_G on September 15th, 2011 | one answer | in Dynamics and kinematics

Roco = rate of change of. Roco distance = speed. Roco speed = acceleration Roco acceleration = jerk. Roco jerk = jounce. Roco jounce = ?
by Ombliss22 on September 6th, 2011 | 2 answers | in Dynamics and kinematics

By following the Principle of Homogeneity, can we say S directly proportional to t² and t in S=ut +1/2 at² ? 'u' and 'a' are constant
by Asish_J on August 15th, 2011 | one answer | in Dynamics and kinematics

RADAR gun / LIDAR gun and measurement angle
by thecatsmeow on July 20th, 2011 | no answers | in Dynamics and kinematics

Does frictional force acting on an object depend on the amount of force(opposite direction to the friction) applied to the object??
by Inddiggo:)) on June 23rd, 2011 | 2 people like this | 3 answers | in Dynamics and kinematics

Can someone explain Newton's first law?? And the question?
by Inddiggo:)) on June 21st, 2011 | 1 person likes this | 4 answers | in Dynamics and kinematics

Vehicles stop on applying brakes.Please explain the principle of conservation of momentum in this.
by Ripan on June 17th, 2011 | 2 people like this | 5 answers | in Dynamics and kinematics

please solve this problem
by Ripan on June 16th, 2011 | 1 person likes this | 2 answers | in Dynamics and kinematics

what will happen if i hit solid ground head first at 11m/s(40kmph)?
by shehzaanvirani on May 13th, 2011 | 3 people like this | 6 answers | in Dynamics and kinematics

Elastic Collision between Two Objects
by futurecivil on April 15th, 2011 | 2 people like this | 2 answers | in Dynamics and kinematics

Pulling-a-Cord-Which-Will-Turn-a-Spool Problem
by futurecivil on April 15th, 2011 | one answer | in Dynamics and kinematics

physics numerical a man throws a ball in air such that...
by aazzz on April 5th, 2011 | one answer | in Dynamics and kinematics

Regarding underwater movement only, how much greater force is required to move a 1kg mass at 1m/s through seawater compared to fresh water?
by Rob_J9884 on February 26th, 2011 | one answer | in Dynamics and kinematics

Seawater is denser than fresh water but will this have a significant effect on drag on a body moving through it (underwater)?
by Rob_J9884 on February 26th, 2011 | 2 people like this | 4 answers | in Dynamics and kinematics

Which spring loses it's spring faster one that is in constant compression or one that is cycled constantly?
by Ombliss22 on January 22nd, 2011 | one answer | in Dynamics and kinematics

What's the difference between centrifugal and centripetal?
by WABOO on January 10th, 2011 | 2 people like this | 4 answers | in Dynamics and kinematics

When and why can you ignore weight in some circular motion problems if the weight is small enough?
by unkn0wn123 on December 20th, 2010 | 2 answers | in Dynamics and kinematics

I almost popped a blood vessel trying to open a jar of pickles!Remembered RachelRay said turn it over & hit it on the counter.WORKS!How?
by My_2cents on December 12th, 2010 | one answer | in Dynamics and kinematics

A car is driving in v=80km/h. It's mass m=1,920kg. It has to break. The breakforce is F=8200N. What is the break-length?
by Sivert_B on December 7th, 2010 | 3 answers | in Dynamics and kinematics

If an electromagnet can lift 200lbs, what is the formula to convert this into horsepower? Is this 200 ft/lbs/sec., thus giving me .36 hp?
by Mark7 on December 1st, 2010 | one answer | in Dynamics and kinematics

Given a rate constant equal to 2.46 x 10-3 M/s, and [N2O]0 = 0.450 M, what is the [O2] at 90.0 s?
by mylttlbunny on November 21st, 2010 | no answers | in Dynamics and kinematics

What's the normal ejaculation pressure? in pounds-per-square inch. hehe
by WABOO on November 13th, 2010 | 6 people like this | 7 answers | in Dynamics and kinematics

I got woken up in the middle of the night by the sound of the water tank emptying. I got up to find the taps on in the house on full flow
by Scotslass on November 5th, 2010 | 3 people like this | 3 answers | in Dynamics and kinematics

Gretzkey or jetskis?
by Have A Nice Day on October 29th, 2010 | 2 answers | in Dynamics and kinematics

Who has an opperational MEG for sale, "motionless eletrical generator" like Thomas Bearden?
by Chester S._W on September 29th, 2010 | one answer | in Dynamics and kinematics

I throw a ball from a 35 meter building, it lands 24.4 meters away. Find the x and y components of velocity just before it ball hits ground?
by girlsnguitars on September 14th, 2010 | 1 person likes this | 4 answers | in Dynamics and kinematics

If you have two forces along the same plane, would it be possible to have a vector result in an xyz direction?
by Junket on August 30th, 2010 | 1 person likes this | 3 answers | in Dynamics and kinematics

Ignoring wind resistance, how long will it take a rock to hit the ground if it is released from the top of a 36 foot tall building?
by mikeotis036 on August 28th, 2010 | 1 person likes this | 2 answers | in Dynamics and kinematics

A 1.5 kg object stretches a spring 3 cm from its natural length when hanging at rest. Then the spring and the object oscillate with an ampl
by ch3st3r on August 26th, 2010 | one answer | in Dynamics and kinematics

What's the name for sensation experienced when seated in a parked car and the car alongside moves backward and you feel a forward motion?
by pearlfox on August 19th, 2010 | 8 answers | in Dynamics and kinematics

I need help with physics!!! Please help!!?
by Alvaro465856 on August 9th, 2010 | 2 answers | in Dynamics and kinematics