The work done on a body of mass 5 Kg is 70 J. What is the magnitude of – McqOptions

MCQOPTIONS

1.	The work done on a body of mass 5 Kg is 70 J. What is the magnitude of the force applied if the total displacement it covered is 7 m.
A.	10 N
B.	-10 N
C.	20 N
D.	70 N
Answer» B. -10 N

Discussion

No Comment Found

Related MCQs

Work done by a force on a body is an example of ______
A force of 10 N creates a displacement of 2 m but the work done on the body throughout its motion is equal to 70 J. What possibly can be the reason or this?
A block of mass 10 Kg accelerates from rest to a velocity of 20 m/s in 5s under the influence of an external force. What is the work done by the external force?
A body of mass 40 Kg covers a distance of 50 m in 5s starting from rest under the influence of a force. What is the work done by the force on the body?
The work done on a body of mass 5 Kg is 70 J. What is the magnitude of the force applied if the total displacement it covered is 7 m.
A force of 40 N acts on body of mass 5 Kg which is initially at rest. What is the amount of work done in the first 10 s?
Work being a scalar quantity sometimes has negative and positive signs. What does the sign suggest?
A force of 40 N acts on body of mass 5 Kg. What is the amount of work done if the total displacement is 2 m and is in the direction of the force applied?
Work is a _______
Work done in a system is ___