Online Tutors

Lesson: Impulse

This lesson introduces the momentum of a body, which is the product of the body’s mass and velocity. In addition, the lesson explains that the impulse of a constant force is the product of the force and its time of action. It also discusses the impulse-momentum principle.

Worksheet: Impulse • 20 Questions

Q1:

A constant force acted on a body of mass 6 kg. As a result, its speed changed from 37 km/h to 49 km/h. Calculate the magnitude of the impulse of this force on this body.

Q2:

A constant force acted on a body of mass 3 kg. As a result, its speed changed from 20 km/h to 50 km/h. Calculate the magnitude of the impulse of this force on this body.

Q3:

A constant force acted on a body of mass changing its speed from 9 m/s to 54 km/h. Given that the impulse of the force was 5.82 N.s, determine the value of .

Q4:

A tennis ball of mass 57 g was moving horizontally at 68.4 m/s when it collided with a vertical racket that was at rest, after which it rebounded at 18.8 m/s. Given that the contact time between the ball and racket was of a second, find the magnitude of the average impact force.

Q5:

A smooth sphere of mass 1 412 g was moving horizontally in a straight line at 13.5 m/s when it hit a smooth vertical wall and rebounded at 9 m/s. Determine the magnitude of the impulse exerted on the sphere.

Preview