A 2.4-kg ball falling vertically hits the floor with a speed of 2.5 m/s and rebounds with a speed of 1.5 m/s. What is the magnitude of the impulse exerted on the ball by the floor?
a. 9.6 Ns
b. 2.4 Ns
c. 6.4 Ns
d. 1.6 Ns
e. 1.0 Ns
A
You might also like to view...
Based on current scientific evidence, the theory that has been most successful at explaining the origin of life on Earth is
A) naturism B) panspermia C) intelligent design D) chemical evolution
In a 35 mm single lens reflex camera (SLR) the distance from the lens to the film is varied in order to focus on objects at varying distances
Over what range must a lens of 45 mm focal length vary if the camera is to be able to focus on objects ranging in distance from infinity down to 1.4 m from the camera? A) 1.49 mm B) 1.20 mm C) 4.48 mm D) 5.98 mm E) 2.09 mm
An amusement ride consists of a car moving in a vertical circle on the end of a rigid boom. The radius of the circle is 10 m. The combined weight of the car and riders is 5.0 kN. At the top of the circle the car has a speed of 5.0 m/s which is not changing at that instant. What is the force of the boom on the car at the top of the circle?
a. 3.7 kN down b. 1.3 kN down c. 6.3 kN up d. 3.7 kN up e. 5.2 kN down
Something falling into a black hole will be ________ by tides
Fill in the blank(s) with correct word