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A football player throws a ball with a velocity of `50 ms^(-1)` at an angle 30° from the horizontal. The ball remains in the air for (Take.`g = 10

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A man can throw a stone to a maximum distance of 80 m. The maximum height to which it will rise,

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Given below figure show three paths of a rock with different initial velocities. The correct increasing order for the respective initial horizontal velocity component (ignoring the effect of air resistance)

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Suppose the earth suddenly stops attracting objects placed near surface. A person standing on the surface of the earth

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The motion of a particle of mass m is described by `y=ut + gt^2`, find the force acting on the

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A machine gun fires a bullet of mass `40 g` with a velocity of `1200 ms^(-1)`. The man holding it can exert a maximum force of `144 N` on the gun.How many bullets can be fired per second at the

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In equilibrium of particle when net external force of the particle is zero. Then, the particle

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Three concurrent coplanar forces `1 N, 2 N and 3 N` are acting along different directions on a body can keep the body in equilibrium,

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Inertia of an object is directly dependent on

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Assertion: Aristotle stated that an external force is required to keep a body in motion. Reason: Opposing forces are always present in the natural

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A uniform chain of length `l` and mass `m` is lying on a smooth table and one-third of its length is hanging vertically down over the edge of the table. If `g` is acceleration due to gravity, work required to pull the hanging part on to the table

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Two bodies of masses `4 kg and 5 kg` are moving with equal momentum. Then, the ratio of their respective kinetic energies

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Two moving objects `(m_1 > m_2)` having same kinetic energy are stopped by application of equal retarding force. Which object will come to rest at shorter

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When a person lifts a brick above the surface of the earth, then its potential

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A bread gives 5 kcal of energy to a boy. How much height he can climbs by using this energy, if his efficiency is 28% and mass is 60

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The graph below represents the potential energy `U` as a function of position r for a particle of mass `m`. If the particle is released from rest at position `r_0`, what will its speed be at position `3r_0`

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A pebble is attached to one end of a string and rotated in a vertical circle. If string breaks at the position of maximum tension, so from the figure shown below, it will break

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Which of the following statement is correct about non-conservative

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Which of the following statement is

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Assertion: Kilowatt-hour is the unit of energy. Reason: One kilowatt hour is equal to `3.6 xx 10^6

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