You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Partially Inelastic Collision

A person stan...

Question

A person standing on the floor of an elevator drops a coin. The coin touches the floor of the elevator in time $t_{1}$ when the elevator is stationary and time $t_{2}$ when the elevator is moving uniformly then:

t_{1} = t_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

t_{1} > t_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

t_{1} < t_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Either B or C depending upon the direction of motion of elevator.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $t_{1} = t_{2}$
As the elevator is moving at uniform speed, so it's acceleration is zero, so, no pseudo force. Thus it can not affect the motion of the coin. Thus in both cases, the coin takes the same time. i.e, $t_{1} = t_{2}$

Suggest Corrections

Similar questions

Q. A person standing on the floor of an elevator drops a coin. The coin reaches the floor of the elevator in time t₁ if the elevator is stationary and in time t₂ if it is moving uniformly. Then
(a) t₁ = t₂
(b) t₁ < t₂
(c) t₁ > t₂
(d) t₁ < t₂ or t₁ > t₂ depending on whether the lift is going up or down.

Q. A person standing on the floor of an elevator drops a coin. The coin reaches the floor of the elevator-

a) in a time

t_{1}

if the elevator is stationary and

b) in time

t_{2}

if it is moving uniformly, then

A coin is dropped in a lift. It takes time $t_{1}$ to reach the floor when lift is stationary. It takes time $t_{2}$ when lift is moving up with constant acceleration. Then

Q. A pendulum suspended from the roof of an elevator at rest has a time period

T_{1}

, when the elevator moves up with an acceleration a its time period becomes

T_{2}

, when the elevator moves down with an acceleration a, its time period becomes

T_{1}

, then.

Q. A pendulum suspended from the roof of an elevator at rest has a time period

T_{1}

. When the elevator moves up with an acceleration

‘ a^{'}

, its time period becomes

T_{2}

; when the elevator moves down with an acceleration

‘ a^{'}

; its time period becomes

T_{3}

, then

Join BYJU'S Learning Program

A person standing on the floor of an elevator drops a coin. The coin touches the floor of the elevator in time t1 when the elevator is stationary and time t2 when the elevator is moving uniformly then:

The correct option is C t1=t2As the elevator is moving at uniform speed, so it's acceleration is zero, so, no pseudo force. Thus it can not affect the motion of the coin. Thus in both cases, the coin takes the same time. i.e, t1=t2

A person standing on the floor of an elevator drops a coin. The coin touches the floor of the elevator in time $t_{1}$ when the elevator is stationary and time $t_{2}$ when the elevator is moving uniformly then:

The correct option is C $t_{1} = t_{2}$
As the elevator is moving at uniform speed, so it's acceleration is zero, so, no pseudo force. Thus it can not affect the motion of the coin. Thus in both cases, the coin takes the same time. i.e, $t_{1} = t_{2}$