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is of length 60 cm. Find 1) the angular velocity of the connecting rod. 2) The velocity of

the piston when the crank makes an angle of 30° with the horizontal.

ST
J } ‘Piston
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> Fig.6

16. An elevator of mass 500 kg is ascending with an acceleration of 317/2, During this ascent
its operator whose mass is 70 kg is standing on the scales placed on the floor. What is the
scale reading? What will be the total tension in the cables of the elevator during his
motion?

17. A body is moving with simple harmonic motion and has velocities of 8m/s and 3m/s at a
distance of 1.5m and 2.5m respectively from the centre. Find the amplitude and time

period of the body.