The cyclist used the brakes to slow down and stop the bicycle. A constant braking force of 140 N stopped the bicycle in a distance of 24 m. Calculate the work done by the braking force to stop the bicycle. Give the unit. (3 Marks)

Work done= force x distance.Here we are told that the force is 140N. The braking distance of the bike is 24m. Therefore, work done is 140 x 24=3360 (2 marks) Joules.(1 mark)The units of work done are Joules. Named after the english physicist James Joule.So the answer is 3360 Joules.

TC
Answered by Tate C. Physics tutor

11810 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

describe the process of nuclear fission


A car driver has to make an emergency stop. The braking distance depends on the speed of the car. For the same braking force, what happens to the braking distance if the speed doubles?


If a 60kg girl jumps out of a helicoptor, draw diagrams to show the forces (with values) acting on her when a) she is in freefall, b) she is accelerating at half of g (g = 10 m/s^2), c) she is travelling at a constant speed?


Calculate the momentum of a 5 tonne truck at 50km/h


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning