While a car is stopped at a traffic light in a storm, raindrops strike the roof of the car. the area of the roof is 5.0 m2. each raindrop has a mass of 3.7 ✕ 10−4 kg and speed of 2.5 m/s before impact and is at rest after the impact. if, on average at a given time, 150 raindrops strike each square meter, what is the impulse of the rain striking the car?

J = 0.693 N.s

Explanation:

The impulse of one single drop is given by:

J1 = m*(Vf - Vo)   where Vf = 0

The magnitude of the total impulse will be:

Jt = J1 * 150 * 5

Jt = 0.693 N.s

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

measure their densities same density, same sub