Questions
A mass of 0.1 kg is rotated in a vertical circle using a string of length 20 cm. When the string makes an angle 30o with the vertical, the speed of the mass is 1.5ms–1. The tangential acceleration of the mass at that instant is
detailed solution
Correct option is A
at = mgsinθ / m= g sin θ= 9.8 x sin 300 m/s2= 4.9 m/s2Talk to our academic expert!
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A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration ac is varying with time to as ac= k2rt2 where k is a constant. What is the power delivered to the particle by the forces acting
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