Turning Effect of Forces

Turning Effect of Forces
A nut has been tightened by a force of 180 N using an 8 cm long spanner. What length of a spanner is required to loosen the same nut with 150 N force
11 cm
8.5 cm
9.6 cm
10.9 cm
Author: rikazzz Comment
Turning Effect of Forces
If 150N of farce is applied on a spanner of 10 cm to open a nut then the length of spanner when the force applied on it is 60 N is
25 cm
80 cm
40 cm
50 cm
Author: rikazzz Comment
Turning Effect of Forces
The forces that are parallel to each other and have the opposite direction are called
negative forces
unlike parallel forces
like parallel forces
positive forces
Author: rikazzz Comment
Turning Effect of Forces
For a right angle triangle if base is 4 cm and perpendicular is 3 cm then cosθ is equal to
0.9
0.8
0.3
1
Author: rikazzz Comment
Turning Effect of Forces
The Greek letter used for summation is
sigma(&sigma);
μ
π
ω
Author: rikazzz Comment
Turning Effect of Forces
Vehicles are made heavy at the base in order to
decrease center of gravity
increase center of gravity
decrease weight
increase weight
Author: rikazzz Comment
Turning Effect of Forces
A point where the whole weight of the body appears to act vertically downward is called
intersection point
center of a mass
friction
center of gravity
Author: rikazzz Comment
Turning Effect of Forces
The total torque produced in opening a nut from spanner is
F * AB
F * A
F * B
A * B
Author: rikazzz Comment
Turning Effect of Forces
The point of a system where an applied force causes the system to move without rotation is termed as
friction
center of gravity
center of a mass
intersection point
Author: rikazzz Comment
Turning Effect of Forces
Two unlike parallel forces of the same magnitude but not along the same line forms a
couple
inertia
gravity
friction
Author: rikazzz Comment

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