FYC7_CON 4_SEP 5
A vertical rod of length ‘l’ is free to rotate about a point ‘O’ as shown in figure. As the rod
rotates through an angle ‘’, the gain in its angular velocity is --------------------1)
2)
3)
4)
FYC7_CON 4_SEP 20
Reel of thread in the form of solid cylinder is allowed to unroll by holding the loose end
of the thread in hand. The acceleration with which the reel falls down is (g = 9.9ms–2)
(1) 9.9ms–2
(2) 3.3ms–2
(3) 6.6ms–2
(4) 1.1ms–2
FYC7_CON 4_SEP 30
A particle of mass 1 kg is projected with an initial velocity 10ms–1 at an angle of
projection 45º with the horizontal. The average torque acting on the projectile, between
the time at which it is projected and the time at which it strikes the ground about the
point of projection is
1) 25 Nm
2) 50 Nm
3) 75 Nm
4) 100 Nm