Answer:
NO
Explanation:
if it has no acceleration then it's not moving
Efficiency= (Work Input/Work Output) x 100
Answer:
Energy is force times distance. For your problem, no matter how long you push, the wall still goes nowhere, so there is no obvious energy transfer. so in conclusion, you actually didn't do anything :(
Explanation:
Answer:
5 watts
power = work done ÷ time taken
10 j ÷ 2 = 5w