Mechanical Engineering - Engineering Mechanics

46.
Work done is said to be zero, when
some force acts on a body, but displacement is zero
no force acts on a body but some displacement takes place
either (a) or (b)
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
The force which acts along the radius of a circle and directed away from the centre of the circle is called centrifugal force.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
One watt is equal to
0.1 joule/s
1 joule/s
10 joules/s
100 joules/s
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
15 N and 5 N
20 N and 5 N
15 N and 15 N
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is __________ the momentum of body having mass m2.
equal to
less than
greater than
Answer: Option
Explanation:
No answer description is available. Let's discuss.