A man is delivering a cupboard to a house. a. The man trolls the cupboard at a
Question:
A man is delivering a cupboard to a house.
a. The man trolls the cupboard at a steady speed from the lorry to the house. The friction force in the wheels is 40 N. State the force with which the man has to push.
b. The cupboard weighs 720 N. State the smallest force needed to lift the cupboard.
c. The step is 0.20 m high. Calculate the work required to lift the cupboard onto the step.
d. The man has to ask his assistant to help him lift the cupboard onto the step. Together, they lift it onto the step in 1.2 s. The men work equally hard. Calculate the power developed by each man.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
a Since the cupboard is moving with constant velocity there is no acceleration Hence the net fo...View the full answer
Answered By
Souvik Bera
I am a physics enthusiast, pursuing a Ph.D. I have been tutoring on various platforms for more than five years. I try to clear the doubts/questions of the students by providing clear and well-explained answers.
0 Reviews
10+ Question Solved
Related Book For 
Question Posted:
