Question

A SUV 'A' of mass 1500 kg moving at 5 ms' has a head-on collision with a small car 'B' weighing 1000 kg. If<br />both cars stop dead on colliding, what was the velocity of car B?<br />​

Answer 1

Answer:

11th

Physics

Laws of Motion

Problems on Dynamics of Circular Motion

A car of mass 1500 kg is mo...

PHYSICS

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Asked on October 15, 2019 by

Shrashti Ruhela

A car of mass 1500 kg is moving with a speed of 12.5 m/s on a circular path of radius 20 m on a level road. What should be the coefficient of friction between the car and the road, so that the car does not slip?

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VIDEO EXPLANATION

ANSWER

Given : Radius of the circular path r=20 m

Mass of the car M=1500kg

Speed v=12.5 m/s

Let the coefficient of friction be μ.

The centrifugal force will balance the friction force so that the car does not slip.

∴

r

mv

2

=μmg ⟹ μ=

rg

v

2

μ=

20×9.8

(12.5)

2

=0.8

Answer 2

Answer:

75m/s to the opposite path of A

Explanation:

-ve sign symbolizes the oppositness of both cars.

Hope u get it...