Home
Class 11
PHYSICS
A block of mass m is resting inside a sm...

A block of mass m is resting inside a smooth horizontal tube. If the tube accelerates vertically downward obeying the relation a = kt, where K is a positive constant and 't' is instant of time. Find normal reaction as a function of time.

A

N = kt + mg

B

N = kt - mg

C

N = mg - mkt

D

N = m/gkt

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

A block of mass m is resting inside a smooth horizontal tube. If the tube accelerates vertically downward with acceleration a=kt where k is a positive constant, the correct plot showing the variation of normal reaction received by the block as a function of time (considering that upward direction of normal reaction is positive and taken towards positive direction y axis) will be

A block is resting over a rough horizontal floor. At t = 0 a time -verying force starts acting on it , the force is described by equation F = kt where k is constant and r is in seconds Marks the cerrect statement (s) for this situation .

Two block of masses m_(1) and m_(2) are placed side by side on a smooth horizontal surface as shown in fig. A horizontal force F is applied on the block . (a) Find the acceleration of each block. (b) Find the normal reaction between the two blocks.

A block of mass m hangs from three springs having same spring constant k. If the mass is slightly displaced downwards, the time period of oscillation will be

A particle of mass m is lying on smooth horizontal table. A constant force F tangential to the surface is applied on it. Find . (a) average power over a time interval from t=0 to t=t, (b) instantaneous power as function of time t.

A particle of mass m moves along a horizontal circle of radius R such that normal acceleration of particle varies with time as a_(n)=kt^(2). where k is a constant. Total force on particle at time t s is

A particle of mass m moves along a horizontal circle of radius R such that normal acceleration of particle varies with time as a_(n)=kt^(2). where k is a constant. Power developed by total at time T is

A block of mass m is placed inside a smooth hollow cylinder of radius R kept horizontally. Initially system was at rest. Now cylinder is given constant acceleration 2 g in the horizontal direction by external agent. Find the maximum angular displacement of the block with the vertical. .

A particle moves in the XY-plane according to the law x = kt, y = kt (1- alphat) , where k and alpha are positive constants and t is time. The trajectory of the particle is

A particle of mass m moves along a horizontal circle of radius R such that normal acceleration of particle varies with time as a_(n)=kt^(2). where k is a constant. Tangential force on particle at t s is