1. Box A is hanging from a string. The string is pulled so that it accelerates downwards at a rate of -1.8 m/s/s. Determine the direction and amount of force of tension on block A.
Force Diagram
Work
a = -1.8 m/s/s
Box A
Answer with Units
Mass = 20 kg
F =
2. Suppose Box A was raised by pulling harder on the rope, causing it to accelerate upwards. What happens, if
anything, to the amount of force of tension in the rope ?
A. tension is more than B. tension is less than C. tension is the same as D. tension is now zero E. It is impossible to
when it accelerated when it accelerated when it accelerated
know the tension
upward
upward
upward