The equation of motion of a particle starting from rest along a straight line is x = t3 - 3t2+ 5. The ratio of the accelerations after 5 sec and 3 sec will be
2
3
4
5
Correct Answer :
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Nature plays an important role in the launch of a satellite
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The gravitational force relents as the satellite climbs higher
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A weight of 100 kg is supported by a string whose ends are attached to pegs A and B at the same level shown in below figure. The tension in the string is 
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10.6 t
10.4 t
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