An electrical insulator has
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Answer:
<h2>Stunt car A and stunt car B are identical cars with the same mass of 35.9 kg. They are both traveling at 37.1 m/s. Stunt car A crashes into a hard concrete wall, whereas stunt car B crashes into a big soft mattress. They both come to a complete stop after the impact.Stunt Car A experiences a <u>LARGE FORCE</u> over a <u>SHORT PERIOD</u> of time. Stunt Car B experiences a <u>SMALL FORCE</u> over a <u>LONG PERIOD</u> of time. Because of the force experienced by Stunt Car A, it will sustain <u>MORE</u> damage than Stunt Car B.</h2>Explanation:
As we know that force is given as rate of change in momentum
so it is defined as
so here we know that both the cars are identical and both are moving with same speed so after coming to rest both the cars have same change in momentum
while Car A will experience more force because due to collision with concrete wall the time of collision is very small as compared to Car B
So Force on Car A is more than the force on Car B
When object falls freely we can say
its initial speed will be ZERO
and its acceleration due to gravity must be
Now we need to find the distance of free fall in 3 s of time
So here we will use kinematics
now we will plug in all values in it
So it will fall by total distance of 44.1 m