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QUESTION 3 A student pushes a 50 kg box of books on a flat surface with...

QUESTION 3

A student pushes a 50 kg box of books on a flat surface with a force of 120 N at an angle of 600 on the horizontal. If the surface is friction free, how far does the box move in 5 seconds assuming it started moving from rest?

to.
a. 6.0 m

b. 8.5 m

c. 15 m

d. 4.6 m

3 points

QUESTION 4

A crane carries a 1600 kg car at 1.5 m / s2 with a chain that has a negligible mass. If the coefficient of kinetic friction between the wheels of the car and the road is 0.3, what is the tension in the chain?

to.
a. 3.8 kN

b. 5.9 kN

c. 6.7 kN

d. 7.1 kN

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