Kinematics Questions

A body of mass ′m′ is taken from the earth′s surface to the height equal to twice the radius (R) of the earth. The change in potential energy of body will be :-...

A stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 seconds, the next 5 seconds and the next 5 seconds respectively. The relation between h1, h2 and h3 is :-...

A small object of uniform density rolls up a curved surface with an initial velocity ′v′. It reaches upto a maximum height of with respect to the initial position. The object is...

From a tower of height H, a particle is thrown vertically upwards with a speed u. The time taken by the particle, to hit the ground, is n times that taken by it to reach the highest point of its path....

The velocity of a particle is v = v0 + gt + ft2. If its position is x = 0 at t = 0, then its displacement after unit time (t = 1) is

A projectile is fired from the surface of the earth with a velocity of 5 ms-1 and angle θ with the horizontal. Another projectile fired from another planet with a velocity of 3 ms-1 at the same a...

A particle is moving such that its position coordinates (x, y) are (2m, 3m) at time t = 0, (6m, 7m) at time t = 2 s and (13m, 14m) at time t = 5 s Average velocity vector from t = 0 to t = 5 s is...

A balloon with mass m is descending down with an acceleration a (where a

Initially car A is 10.5 m ahead of car B. Both start moving at time t = 0 in the same direction along a straight line . The velocity time graph of two cars is shown in figure. the time when car B will...

A man starts tuning along a straight with uniform velocity feels that the rain is falling vertically down along ĵ . If he doubles his finds that the rain is coming at an angle θ to the tidal...

When an α-particle of mass ‘m’ moving with velocity ‘v’ bombards on a heavy nucleus of charge ‘Ze’, itsdistance of closest approach from the nucleus depends o...

A small sphere of radius 'r' falls from rest in a viscous liquid. As a result, heat is produced due to viscous force. The rate of production of heat when the sphere attains its terminal veloci...

A projectile is given an initial velocity of m/s, where is along the ground and is along the vertical. If g = 10 m/s2, the equation of its trajectory is :...

A particle of mass m is at rest at the origin at time t = 0. It is subjected to a force F(t) = F0e-bt in the x direction. Its speed v(t) is depicted by which of the following curves ?...

A boy can throw a stone up to a maximumheight of 10 m. The maximum horizontaldistance that the boy can throw the same stoneup to will be :-

The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is

A particle has initial velocity and acceleration The magnitude of velocityafter 10 seconds will be...

The motion of a particle along a straight line is described by equation:x = 8 + 12t - t3 where x is in metre and t in second. The retardation of the particle when itsvelocity becomes zero, is...

A small block is connected to one end of a massless spring of un-stretched length 4.9 m. The other end ofthe spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The...

A particle covers half of its toatl distance with speed v1 and the rest half distance withspeed v2 . Its average speed of the complete journery is