Science
Why is it advised to tie any luggage kept on the roof of a bus with a rope?
Laws of Motion
6 Likes
Answer
When some luggage is placed on the roof of a bus which is initially at rest, the acceleration of the bus in the forward direction will exert a force (in the backward direction) on the luggage due to luggage's inertia of rest.
On the other hand, when a moving bus suddenly stops due to the application of brakes, a force (in the forward direction) is exerted on the luggage due to luggage's inertia of motion. Hence, tying the luggage will secure its position and prevent it from falling off the bus.
Answered By
4 Likes
Related Questions
An object experiences a net zero external unbalanced force. Is it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on.
When a carpet is beaten with a stick, dust comes out of it. Explain
A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because
- the batsman did not hit the ball hard enough.
- velocity is proportional to the force exerted on the ball.
- there is a force on the ball opposing the motion.
- there is no unbalanced force on the ball, so the ball would want to come to rest.
A truck starts from rest and rolls down a hill with a constant acceleration. It travels a distance of 400 m in 20 s. Find its acceleration. Find the force acting on it if it's mass is 7 tonnes.
(Hint: 1 tonne = 1000 kg)