A body is pivoted. A force of 10 N is applied at a distance of 30 cm from the pivot. Calculate the moment of force about the pivot.
3 Nm
4 Nm
5 Nm
6 Nm
A car of mass 7000kg starts from rest and travels a distance 800m in 20s.The force acting on the car will be
2800N
28000N
8000N
24000N
Momentum of a body depends
Only on mass of the body
Only on weight of the body
Only on velocity of the body
Mass and velocity of the body
The correct relationship between kgf and N is
1 kg f = IN
1 kg f = 9.8 N
9.8 kg f = IN
1 kg f = 980 N
If the mass of a body is increased,force remaining constant,the acceleration
increases
decreases
remains some
None of these
Inertial mass mi of a body is given by
F/a
W/g
MG/a
MG/g
Centre of gravity of a solid sphere is located at
the centre of the sphere
outside the sphere
geometric centre of the sphere
A nut is opened by a wrench of length 10cm. If the least force required is 5.0N. Then the moment of force needed to turn the nut is
50 Nm
0.5 Nm
0.05 Nm
500 Nm
Weight of a body at the poles will be
Greater than that at the equator
Lesser than that at the equator
Equal to that at the equator
Causes of different motion described by
Force
Work
Power
Energy
