Centripetal force Quiz 1

Question 1

The force component which is experienced on an object, directed towards the centre of curvature, when it undergoes a curvilinear motion is given as __ .

Accepted Answer

Centripetal force

Answer

Centrifugal force

Answer

Both of these

Answer

None of these

Question 2

The speed at which Meena ran around a park as part of her exercise is given as $$14m/s^{-1}$$. Meena weighed $$60 kg$$ and ran a radius of $$1km$$ around the park. What would her centripetal force be?

Accepted Answer

$$11.76	ext{ }N$$

Answer

$$117.6	ext{ }N$$

Answer

$$1176	ext{ }N$$

Answer

None of these

Question 3

On a rainy day while waiting for the bus, Arun saw mud flying off the wheel of a car tire. He began to think of the force acting on it. Could you please assist him in determining which type of force he can include this in?

Accepted Answer

Centrifugal force

Answer

Centripetal force

Answer

Can’t say

Answer

Both of these

Question 4

The velocity at which a lorry bearing mud traversed a circular road with a diameter of $$1	ext{ }km$$ is $$2.5	ext{ }m{{s}^{-1}}$$. The $$150	ext{ }kg$$ lorry is carrying a load of $$50	ext{ }kg$$ mud in it.  Determine the lorry's centripetal power.

Accepted Answer

$$1.25	ext{ }N$$

Answer

$$0.9375	ext{ }N$$

Answer

$$2.25	ext{ }N$$

Answer

$$0.3125	ext{ }N$$

Question 5

What is the natural force acting on a mass of $$100	ext{ }kg$$ going in a circular motion with a centripetal force of $$200	ext{ }N$$ ? Assume that the coefficient of static friction is  $$0.2$$.

Accepted Answer

$$1000	ext{ }N$$

Answer

$$50	ext{ }N$$

Answer

$$500	ext{ }N$$

Answer

$$5000	ext{ }N$$