Question

1.The force of friction a) Increases with the weight of the body b) decreases with the weight of the body c) it is not affected by weight of the body d) None of these 2. The deep grooves in the tyre of a) Decreases friction b) increases friction c) make it stable d) Make tyre more attractive.

Answer 1

Answer:-

For Question (1)

→ The force of friction increases with increasing the weight of the body. If the weight of the body increases then the force applied on it also increases and if the force applied on it increases then the force of friction also increases .

Hence Option (a) is the correct answer.

For Question (2)

→ The deep grooves in the tyre of vehicles increases friction. The vehicles without grooves tend to skid. Tyres are treaded by making gooves on its surface because treaded tyres gives a better grip on the road.

Hence Option (b) is the correct answer

Additional Information !!

Friction :- The property of body due to which it's opposes the motion is called friction.

→ It always acts in opposite directions.

→ The Force Of Friction always depends on the nature of surface in contact and the mass of the object in contact.

→

Answer 2

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1) The force of friction increases with the weight of the body.

Option (a) is the correct answer.

2) The deep grooves in the tyre increases friction.

Option (b) is the correct answer.