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GATE 2019 Engineering Mechanics Quiz 4
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A car starts from rest and accelerates at a speed of 35 m/s in time 18 seconds. Find the average acceleration of the car?
The propeller of an aircraft fitted with electric motor operates at 1400 rpm. What will be its angular speed in radians/second?
Two steel balls of 2 kg and 4 kg mass, respectively are pressed on the two ends of a spring, all pre-placed on a smooth surface. When released, the smaller ball moves with an acceleration of 2 m/s2. The simultaneous acceleration of the bigger ball will be :
A bullet of mass 0.03 kg moving with a speed of 400 m/s penetrates 12 cm into a fixed block of wood. The average force exerted by the wood on the bullet will be :
A base ball is resting at a point A on the field is thrown by a player with initial speed of 40 m/s making an angle of 45 º with horizontal. Find the time taken by base ball to reach the point B which is at height of 15m on other side of field and 250m away from point A
Two motor-cyclist driving at uniform speeds s1 and s2 respectively in straight line path in opposite directions and come closer 11 m after every second. While running in similar direction, their speeds reduces by 50% and get 0.7m closer in every second. The speeds s1 and s2 of the motor cyclist will be:
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Nov 15ESE & GATE CE