Advertisements
Advertisements
Question
Is force needed to keep a moving body in motion?
Solution
Force is not needed to keep a moving body in motion.
APPEARS IN
RELATED QUESTIONS
A charged body ______ an uncharged body towards it.
A ball is hanging by string from the ceiling of the roof. Draw a neat labelled diagram showing the forces acting on the ball and the string.
A wooden block is placed on a table top. Name the forces acting on the block and draw a neat and labelled diagram to show the point of application and direction of these forces.
Which of the following is a contact force:
'More the mass, the more difficult it is to move the body from rest'. Explain this statement by giving an example.
A car of mass 800 kg, moving at 54 kmh−1 is brought to rest over a distance of 15 m. Find the retarding force developed by the brakes of the car.
The CGS unit of force is dyne:
∴1 N = __________ dyne
What is the ratio of SI to CGs units of force?
Figure shows a man with a parachute. Name the force which is responsible for his downward motion. Will he come down with the same speed without the parachute?
Figure shows a car sticking to an electromagnet. Name the forces acting on the car. Which one of them is larger?
