Question

Example 3 A person using a 40 cm long handled spanner can
open a nut by applying a 120 N force. What should be the length of
the handle if he wants to open the nut by applying a force of 80 N?​

Answer 1

Answer:

1. distance = speed×time

=45×90

= 4050m

=4.05km

2. speed = distance÷time

=620/16

=37.75 m