Question

19. The speed of particle moving along a cir
cle of radius 20 cms increases at the rate
of 10 cm/sec* if the mass is 200 gms find
the torque on it.​

Answer 1

Explanation:

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Answer 2

Answer:



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11th

Physics

Systems of Particles and Rotational Motion

Rolling Motion

A particle is constrained t...

PHYSICS

A particle is constrained to move in a circle with a 10-meter radius. At one instant, the particle's speed is 10 m/s and is increasing at a rate of 10 m/s2. The angle between the particle's velocity and acceleration vectors is 

A .

00

B .

300

C .

450

D .

600

December 26, 2019Niti Waswani

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ANSWER

There are two perpendicular components of acceleration.

1) at along the direction of velocity,that increase the speed. so, at=10m/s2

2) ac, centripetal acceleration,towards the center of rotation . ac=rv2=10m/s2

So, net a=at+ac

∣ac∣=∣at∣, so Velocity is  equally inclined(at 450) to both components