A horizontal rope is tied to a 45.0kg box on frictionless ice. What is the tension in the rope if:

Question

A) The box is at rest?
B) The box moves at a steady vx = 4.40m/s ?
C) The box vx = 4.40m/s and ax = 4.60m/s2 ?

Answer 1

f=ma

a. zero, acceleration is zero
b.zero, acceleration iszero
c. tension=45*4.6

Answer 2

24N

Answer 3

zero

Answer 4

0
2
5