PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
In a crash test, the horizontal force on a 1000kg car starts from zero at t=0 and increases uniformly to 2.0×105N at t=0.050s, after which it drops instantly to zero.
(i) Find the impulse imparted to the car during the test.
(ii) Calculate the change in speed of the car due to this force.