1. A 3 kg cannonball traveling at 50 m/sec would have a kinetic energy of ___?
A. 150 kg-m/sec
B. 3750 newtons
C. 3750 newton-meters
D. 3750 joules
E. Both C and D
2. How many newtons of force are needed to drag a ten newton box over a surface if the coefficient of friction between the box and the surface is 0.3?
A. 10
B. 3
C. 7
D. 30
Thanx this can really help me out!
A. 150 kg-m/sec
B. 3750 newtons
C. 3750 newton-meters
D. 3750 joules
E. Both C and D
2. How many newtons of force are needed to drag a ten newton box over a surface if the coefficient of friction between the box and the surface is 0.3?
A. 10
B. 3
C. 7
D. 30
Thanx this can really help me out!