PhysicsWork, energy and powerWAEC
Work done by a force is zero when the force is
Show answer
Answer: A. perpendicular to the displacement
W = Fs cos 90° = 0.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Physics · Work, energy and power
Practise Work, energy and powerA timed set on this topic, freeAsk the AI TutorExplain it another way
Discussion
Ask about a step, share a shortcut, or explain it your way. Be kind; no links.
No comments yet. Be the first to explain it.
More Work, energy and power questions
- As a stone falls freely towards the ground, its
- A pendulum bob at the lowest point of its swing has maximum
- A 0.5 kg ball is dropped from a height of 20 m. Find its speed just before it hits the ground. [g = 10 m/s²]
- A 2 kg body falls freely from a height of 20 m. Find its speed just before it hits the ground.
- A boy of mass 70 kg runs up a flight of stairs 3 m high in 7 s. Find his power.