neglect fricion: no work.
a. he did no work, if there is no friction.
b. F=ma solve for a.
Zak, helping his mother rearrange the furniture
in their living room, moves a 42.3 kg sofa
7.2 m with a constant force of 17 N.
A. What is the work done by Zak on the sofa?
Neglect friction.
Answer in units of J.
B. What is the average acceleration of the sofa?
Answer in units of m/s^2
2 answers
Disagree. He still pushed 7.2 m @17 N.
W = Fd
W = Fd
0 answers