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:

m g

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m g - \frac{m v^{2}}{R}

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m g + \frac{m v^{2}}{R}

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z e r o

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Solution

The correct option is D $z e r o$
When the car is in the air, the bob is in the condition of weightlessness, i.e., its like no mass is attached to the string. So, tension in the string at that time is zero.

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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

A Simple pendulum having a Bob of mass M is suspended from the ceiling of a car used in stunt film shooting in a 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 in the string when the car is in air..plz explain with a figure.

Q. Consider a car moving on a horizontal road, convex bridge and concave bridge of same radius

R

. The speed of the car in each situation is same and equal to

v

, the mass of the car is

m

, then:

(i) N_{A} = m g

(i i) N_{B} = m g - \frac{m v^{2}}{R}

(i i i) N_{C} = m g + \frac{m v^{2}}{R}

(i v) N_{C} > N_{A} > N_{B}

Q. From the top of a cliff, the angle of depression of car on the ground is

60^{o}

. If the car is at a distance of 30 m from the cliff. Find the height of the cliff.

A simple pendulum of length l is suspended from the ceiling of a car moving with a speed v on a circular horizontal road of radius r. (a) Find the tension in the string when it is at rest with respect to the car. (b) Find the time period of small oscillation.

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The correct option is D zeroWhen the car is in the air, the bob is in the condition of weightlessness, i.e., its like no mass is attached to the string. So, tension in the string at that time is zero.

The correct option is D $z e r o$
When the car is in the air, the bob is in the condition of weightlessness, i.e., its like no mass is attached to the string. So, tension in the string at that time is zero.