The impulsive force is inversely proportional to the time of impact.ġ. We can see that when the stopping time ,t, is small, F is big and when t is big, F is small.

(b) he lands on the ground with stiff legs and takes 0.02 s to stopĮffect of time interval of impact on size of impulsive force (a) he bends his knees upon landing on the ground and takes 0.5 s to stop What is the impulsive force acting on the boy if The velocity of the boy when he just touches the ground is 4 ms -1. How much is the impulsive force experienced by the ball if the time of collision is 20 m s.Ī boy of mass 50 kg falls a high place to the ground. Ī player hits the ball and moves in the opposite direction with a velocity of 10 ms – 1. Impulsive force = gradient of the graph Impulse – TimeĪ tennis ball of mass 100 g is moving at a velocity of 40 ms – 1. Impulsive force also defined as the rate of impulse Impulsive force is defined as the rate of change of momentum. The impulsive force is a large force which acts over a very short time interval. How much is the impulse upon the object.ĭefinition and S.I. How much is the impulse on the object once it hits the ground.įigure shows a trolley of mass 1.5 kg hits the wall with a velocity 5 ms -1 and bounches back with a velocity of 4 ms -1.Ĭalculate the magnitude of the impulse during collision.Ī box of mass 2 kg is pulled with a force of 40 N for 5 s.

Its velocity isĦ ms -1 before it touches the ground. Impulse is also defined as the product between impulsive force,F with the time impact, t.Īn object of mass 5 kg falls from a building. Impulse is defined as the change in momentum

Impulse and impulsive force