matthewbroncofan matthewbroncofan

15-02-2021
Physics

contestada

A 0.5-kilogram soccer ball is kicked with a force of 50 newtons for 0.2 seconds. The ball was at rest before the kick. What is the speed of the soccer ball after the kick?

Respuesta :

gibssimbanoel gibssimbanoel

21-02-2021

Answer:

speed of a ball after the kick was 20m/s

Explanation:

before the kick the velocity of a ball was zero due to that the ball had maximum potential energy, after the kick a ball accelerated by gaining kinetic energy there fore it moved with a speed v that is calculated from,

impulse(force x time)=mass x (V-U)

but U=0

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