Unit of force in C.G.S system
1 dyne
1 Newton
1 Joule
1 Calorie
The resultant of action and reaction forces is _______.
Greater than zero
Less than zero
Zero
None of these
If two surfaces in contact with one another have relative motion between them , it is opposed by a force called
Frictional force
Mechanical force
Gravitational force
The force applied by us on a wall is called
Reaction
Action
Momentum
In gravitational units ,units of force in M.K.S system is
kgwt
1 joule
none of these
A person swimming in a fresh water pool obeys
Newton's second law
Gravitational law
Newton's third law
Newton's first law
According to Newton’s second law of motion: Force, F =
ma
m / a
ma2
2ma2
Equation for momentum =
Applying a force on the body with physical contact and this force is called
Magnetic force
A force of 10 N is acting on an object of mass 10 kg. What is the acceleration produced in it?
1m/s2
2 m/s2
10 m/s2
