Dynamics

Dynamics
The force that produces an acceleration of 1 ms⁻² in a body of the mass of 1 kg is called
slow newton
zero newton
one newton
two newton
Author: rikazzz Comment
Dynamics
A bullet of mass 30 g is fired from a gun with a muzzle velocity 90ms⁻¹. If its mass is 4 kg then the recoil of the gun will be
− 0.34 ms⁻¹
0.54 ms⁻¹
− 0.54 ms⁻¹
0.34 ms⁻¹
Author: rikazzz Comment
Dynamics
When a force acts on a body, it produces an acceleration in the body and will be equal to the rate of change of
velocity of the body
displacement of the body
inertia of the body
momentum of the body
Author: rikazzz Comment
Dynamics
If a bus takes a sharp turn then passengers inside move outward due to
force
inertia
normal force
friction
Author: rikazzz Comment
Dynamics
The centripetal force is given by
(mV²) ⁄ r
r ⁄ mv
mvr
Vr
Author: rikazzz Comment
Dynamics
Mass does not change with the change of place so it is a
vector quantity
scalar quantity
fixed quantity
variable quantity
Author: rikazzz Comment
Dynamics
The force of gravity acting on a body is known as its
mass
inertia
weight
force
Author: rikazzz Comment
Dynamics
The shape and size of a body on which action takes place can also be changed due to
velocity
momentum
force
weight
Author: rikazzz Comment
Dynamics
The contact points between the two surfaces form a sort of
cold welds
hot welds
strips
momentum
Author: rikazzz Comment
Dynamics
The maximum value of friction is known as the
initial friction
force of limiting friction
fixed friction
inertia
Author: rikazzz Comment

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