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# P a Simple Pendulum Having a Bob of Mass M is Suspended from the Ceiling of a Car Used in a Stunt Film Shooting. - Physics

ConceptCircular Motion

#### Question

A simple pendulum having a bob of mass m is suspended from the ceiling of a car used in a stunt film shooting. the car moves up along an inclined cliff at a speed v and makes a jump to leave the cliff and lands at some distance. Let R be the maximum height of the car from the top of the cliff. The tension in the string when the car is in air is

• mg

• $\text{ mg} - \frac{\text{mv}^2}{\text{R}}$

• $\text{mg} + \frac{\text{mv}^2}{\text{R}}$

• zero.

#### Solution

zero
When the car is in air, the acceleration of bob and car is same. Hence, the tension in the string will be zero.

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#### APPEARS IN

Solution P a Simple Pendulum Having a Bob of Mass M is Suspended from the Ceiling of a Car Used in a Stunt Film Shooting. Concept: Circular Motion.
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