Question

5- A 2500g object is pushed with 55N for 12m in 11s, there was a force of friction of 30N.

a) Calculate the work done.
b) Calculate the acceleration
c) Calculate the average speed

Answer 1

1kg =1000g

2.5kg

D=12m

t=11s

F=2.5KG

Step-by-step explanation:

work done =f.d

=2.5×12

=30Nm

55-30

average speed

final - initial

divide by time t(s)