Answer:
300,000,000 and the second question is the same.
Explanation:
Edge
Answer: c) 0
Explanation:
Work tension is zero because in any infinitesimal time interval, the tension force is directly perpendicular to the displacement.
Answer:
160J
Explanation:
Given force = 8N and total distance = 20 meters
Workdone = force x distance
= 8 x 20
= 160J
Therefore, workdone by Riley in pulling the hoover is 160J