Adjoining diagram shows velocity versus time plot for a particle. work done by force on particle is

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5.Work, Energy, Power and Collision

easy

The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from

$A$ to $B$

$B$ to $C$

$C$ to $D$

$D$ to $E$

Solution

(a)From the graph it is clear that force is acting on the particle in the region $AB$ and due to this force kinetic energy (velocity) of the particle increases. So the work done by the force is positive.

Standard 11

Physics

A body of mass $m$ moves in a circular path with uniform angular velocity. The motion of the body has constant

easy

A car travelling at a speed of $30\, km/hour$ is brought to a halt in $8\, m$ by applying brakes. If the same car is travelling at $60 \,km/hour$, it can be brought to a halt with the same braking force in …………… $\mathrm{m}$

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If momentum is increased by $20\%$ , then K.E. increases by ……….. $\%$

medium

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medium

Two masses of $1 \,gm$ and $4 \,gm$ are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is

medium

(AIIMS-1987)

The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from

Solution

Similar Questions

A body of mass $m$ moves in a circular path with uniform angular velocity. The motion of the body has constant

A car travelling at a speed of $30\, km/hour$ is brought to a halt in $8\, m$ by applying brakes. If the same car is travelling at $60 \,km/hour$, it can be brought to a halt with the same braking force in …………… $\mathrm{m}$

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Two masses of $1 \,gm$ and $4 \,gm$ are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is

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