A 1 kg mass moves in a horizontal circle of radius 5 m at a speed of 6 m/s. What centripetal force acts on it?
Answer and explanation
Correct answer: A. 7.2 N
- Step 1: The force is N. Answer: 7.2 N. Why not the others: 1.2 N, 180 N and 3.6 N don't fit.
Practise more Quantitative science problems.
Free questions with an explanation for every one, and full timed GAMSAT (Graduate Medical School Admissions Test) mock tests.
More Quantitative science problems questions
- A ball is thrown at 30 m/s at 45° to the ground. Taking m/s², what is its horizontal range?
- A simple pendulum has length 3.6 m. Taking m/s², what is its time period?
- Two point charges of 6 μC and 2 μC are placed 0.2 m apart in air. Taking N m²/C², what is the force between them?
- Capacitors of 3 μF and 4 μF are joined in series. What is the equivalent capacitance?
- How much energy is stored in a 4 μF capacitor charged to 10 V?
- Photons of energy 5 eV fall on a metal of work function 1.5 eV. What is the maximum kinetic energy of the emitted photoelectrons?