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A 7.0-kg bowling ball experiences a net force of 5.0 N. What will be its acceleration?
A projectile is launched at 45° to the horizontal with an initial kinetic energy E. Assuming air resistance to be negligible what will be the kinetic energy of the projectile when it reaches its highest point?
To improve the jumping record the long jumper should jump at an angle of
Range of a projectile on a horizontal plane is same for the following pair of angles:
At which point for a projectile its kinetic energy is completely converted into potential energy
The relation “∆x/∆t” gives definition of
A body covers displacement of 50 m in 2 sec and then next 50m in 1 sec Magnitude of its average velocity would be
If ∆t made smaller and smaller till it approaches to zero than the relation “∆v/∆t” gives
The magnitude of acceleration produced in an object is inversely proportional to the (if force is constant)
Mathematically form of Newton’s 2nd law of motion:
The collision in which K.E does not conserve before and after is called:
When two bodies of equal masses collide with one another then
A car runs at constant speed on a circular track of radius 100 m taking 62.8 sec on each lap. What is the average speed and average velocity on each complete lap?
Angle between action and reaction forces is
A person sitting in an open car moving at constant velocity throws a ball vertically up into air. The ball falls
A force of 100 dynes acts on mass of 5 gm for 10 seC:) The velocity produced is
In doubling the mass and acceleration of the mass, the force acting on the mass with respect to the previous value
A vehicle of 100 kg is moving with a velocity of 5 m/seC:) To stop it in , the required force in opposite direction is
When we jump out of a boat standing in water it moves
Action and reaction forces act on
If a force of 250 N act on body, the momentum acquired is 125 kg-m/s. What is the period for which force acts on the body?
The graph shown in figure represents
When force of 1N is applied on a body of mass 100g then the acceleration would be
An object describe its motion as 20 m/s in 4 s, 23 m/s in 7 s and 26 m/s in 10 s then its velocity is said to be
If body is falling freely, distance covered in 3 second is
A cricket ball is hit so that it travels straight up in air and it acquires 3 seconds to reach the maximum height. Its initial velocity is
Laws of motion are not valid in a system which is
When the projectile reaches the highest point of trajectory, the vertical component of velocity becomes
The area between velocity time graph and the time axis is numerically equal to
The slope of velocity time graph gives
A force of 10 N acts on a body of mass 1 kg for 5 sec to a distance of 10 m. The rate of change of momentum is:
Height of projectile is maximum at an angle of:
Which shows correct relation between H and T of projectile?
A runner runs 100m in 10s, then turns around and jogs 50m back toward the starting point in 30s. What is his average speed and average velocity in m/s.
For range to have maximum value, the function sin2θ should have value
A baseball is thrown vertically into the air. The acceleration of the ball at its highest point is
If R is the max range of projectile, then greatest height attained is
A projectile is thrown at 45°, its range is 90 m what is its initial velocity
If the slope of displacement-time graph increases, then
A body travels 4 m due north and then turns east and travels 3 m due east. the displacement of the body is:
A body of momentum mv collides with a wall elastically its change in momentum is
If a tennis ball moving with velocity 15 ms<sup>-1</sup>collides elastically with a wall then velocity of tennis ball after collision will be__________.
The horizontal component of velocity of projectile moving with initial velocity of 250m/s at an angle 60° with x-axis is
particle at rest suddenly disintegrates into two particles of equal masses which start moving. The two fragments will.
If a tennis ball moving with velocity 15 ms-1collides elastically with a wall then velocity of tennis ball after collision will be__________
Displacement time graph is shown in figure below acceleration will be
A car of mass 1000 kg moving with 25 ms-1collide straight with stationary truck of mass 1500 kg, and start moving together. Find the velocity of truck.
Force is measured according to which law of motion
For two colliding balls which condition is applicable for one dimensional elastic collision
If the slope of velocity-time graph gradually decreases, then the body is said to be moving with:
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