Advertisements
Advertisements
प्रश्न
A body is acted upon by two forces of magnitude F, but in opposite directions. State the effect of the force if the two forces act at two different points of the body at a separation r.
Advertisements
उत्तर
The forces tend to rotate the body about the midpoint between two forces: Moment of forces = Fr. Resultant force = 0.
संबंधित प्रश्न
A ball is hanging by a thread from the ceiling of the roof. Draw a neat labelled diagram showing the forces acting on the ball and the string
A spring is compressed against a rigid wall. Draw a neat and labelled diagram showing the forces acting on the spring.
Give one example in the given cases:-
A force changes the size of a body
Define Newton (the S.I unit of force)
Complete the following
Newton is the unit of .................
Which of the following is not the force at a distance:
(a) electrostatic force
(b) gravitational force
(c) frictional force.
(d) magnetic force.
A force od 10 kgf is applied on a body of mass 100 g initially at rest for 0.1 s calculate:
a) the momentum acquired by the body
b) the distance travelled by the body in 0.1s. Take g = 10 N kg-1
How do you define force? What are the forces acting on a man standing in a lift? If the lift moves down with an acceleration of 2 ms−2, what is the net force on the man if his mass is 50 kg?
A ball was set rolling on a large table. If its ______ is to be changed, a ______ will have to be applied on it.
Assertion: Force is defined as a push or pulls acting on a body.
Reason: CGS unit of force is the newton.
