Last seen: Jan 25, 2021
The force that always opposes the motion of object is called force of friction.
When forces acting on a body from the opposite direction do not change the state of rest or of motion of an object, such forces are called balanced fo...
A force of one Newton produces an acceleration of 1 m/s2 on an object of mass 1 kg. 1 N = 1 kg m/s2
S.I. unit of force is Newton.
It is a push or pull on an object that produces acceleration in the body on which it acts.
(d) frictional force acts on it
(b) act on different bodies
(c) Newton’s II law of motion
(a) Frictional force exerted on the body is less than 50 N
(c) the product mi/ is same for both bodies
(a) The net accelerating force = Force exerted by the engine - friction force = 40000 N - 5000 N = 35000 N (b) The acceleration of the train (a)...
m = 1 kg u = 20 m/s s = 50 m v = 0 F = ? a = ? = 2as = 2a(50) ∴ - 400 = 100 a ∴ a = = -4 m/s2 Force of friction, F = m x a = ...
u = 0 m/s s = 400 m t = 20 s a = ? F = ? m = 7 tonnes = 7 x 1000 kg = 7000 kg s = ut + 400 = (0 x 20) + = = a ∴ a = 2 m/s2 ...
(c) there is a force 6n the ball opposing the motion.
In moving vehicle like bus, the motion is not uniform, the speed of vehicle varies and it may apply brake suddenly or takes sudden turn. The luggage w...
The carpet with dust is in state of rest. When it is beaten with a stick the carpet is set in motion, but the dust particles remain at rest. Due to in...