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BARC 2021 ME: Engineering Mechanics Nuclear Quiz 1

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Question 1

Find acceleration of the 5 kg block which is connected by the 4 kg block by a rigid massless rod_____.
( Neglect friction)

Question 2

Action and reaction

Question 3

If five forces are acting on the single particle and having an angle of 72˚ between each and are collinear, then______.

Question 4

A 10 N force applied on a body produce in it an acceleration of 1 m/s2. The mass of the body is

Question 5

When a small bug is splattered across a fast moving windshield, then

Question 6

What is the essential characteristic for a system in equilibrium is

Question 7

A 1.0 kg block collides with a horizontal weightless spring of force constant 2.75 Nm–1 as shown in figure. The block compresses the spring 4.0 m from the rest position. If the coefficient of kinetic friction between the block and horizontal surface is 0.25, the speed of the block at the instant of collision is

Question 8

A body of mass 1 kg starts moving from rest at t = 0, in a circular path of radius 8 m. Its kinetic energy varies as a function of time as: K.E. = 2t2 Joules, where t is in seconds. Then

Question 9

Which of the following is dimension of work done _________?

Question 10

A spring of force constant 800 N/m has an extension of 5 cm. The work done (in Joule) in extending it from 5 cm to 15 cm is:
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