Inertial mass mi of a body is given by
F/a
W/g
MG/a
MG/g
Si unit of linear momentum is
Kgm/s2
kgm/s
Kgm
Kg/s2
What is the relation between gravitational mass mg and inertial mass mi?
mg>mi
mi>mg
mg=mi
None of these
A body of mass 10kg changes its velocity from 5m/s to 35m/s in 10s.The force needed to produce the acceleration will be
3N
35N
30N
25N
If the weight of a body is 5 kgwt,what will be its mass?
0.5kg
9.8kg
5kg
4.9kg
Weight of a man on earth is 686 N. If gm = 1.65 ms-2 his weight on moon will be
70 N
70 kg
114.1 kg
115.5 N
Causes of different motion described by
Force
Work
Power
Energy
The moment of a force about a given axis depends:
only on the magnitude of force
only on the perpendicular distance of force from the axis
neither on the force nor on the perpendicular distance of force from the axis.
both on the force and its perpendicular distance from the axis.
Which of the following is a vector quantity?
Inertial mass
Gravitational mass
Weight
Both inertial and gravitational mass
A mechanic can open a nut by applying a force of 150 N while using a lever handle of length 40 cm. How long handle is required if he wants to open it by applying a force of only 50 N?
.12 m
2.4 m
12 m
1.2 m
