Physics · Oct / Nov 2021 · Paper 12 · Question 12
5054Work
A 60 kg ice-skater, travelling initially at 3.0 m / s, glides across a horizontal icy surface. The skater brakes and comes to rest after 5.0 m. The work done against the braking force is the change in the kinetic energy of the skater. What is the braking force?
- A18 N
- B27 N
- C54 N
- D108 N
As printed in the paper
Show the answer
Correct answer: C. 54 N
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.