Question

You are riding on your bicycle with inflated tyres. Your friend asks for a lift and sits on the carrier behind you
A) The air pressure in the tyres increases
B) The air pressure in the tyres decreases
C) The air pressure in the tyres remains the same
D) Nothing inthe system changes except the reaction of the ground

Answer 1

Answer:

your answer is option a

Answer 2

Option A is right. The air pressure increases in the tire.

Explanation:

The increase in the air pressure of tire is because of reduction of volume of inside of the tire.

As, we know, the pressure and volume are inversely proportional to each other.

                                    ⇒ v ∝ $\frac{1}{p}$

where, 'p' is the pressure and 'v' is the volume.

As, you friend sits on the carrier. There is an increase of load on the upper side of tyre due to gravity. Due to which the tyre presses downside and decrease in volume takes place.