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August crash course - Test 1Contact Number: 9667591930 / 8527521718
August crash course - Test 1Contact Number: 9667591930 / 8527521718
1.

The relation between time and distance is t=αx2+βx, where α and β are constants. The retardation is
1.  2αv3
2.  2βv3
3.  2αβv3
4.  2β2v3



2.

The coordinates of a moving particle at a time t, are given by, x=5 sin 10t, y=5 cos 10t. The speed of the particle is
1.  25
2.  50
3.  10
4.  502



3.

A satellite in force-free space sweeps stationary interplanetary dust at a rate dM/dt=αv where M is the mass, v is the velocity of the satellite and α is a constant. What is the deacceleration of the satellite ?
1.  -2αv2/M
2.  -αv2/M
3.  +αv2/M
4.  -αv2



4.

A body of mass 3 kg is moving under a force, which causes a displacement in it, given by S=t33(in m). Find the work done by the force in first 2 seconds .
1.  2 J
2.  3.8 J
3.  5.2 J
4.  24 J



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