# Lakhmir Singh Solutions Class 9 Physics Solutions for Exercise in Chapter 2 - Force and Laws of Motion

Question 38 Exercise

a) Define the term ‘force’.

b) State the various effects of force

a) Force is defined as the influence which brings a moving body into rest or can make a resting body move.

b) Following are the effects of force:

i) Force can stop a moving object

ii) Force can move a resting object

iii) Force can change the direction of a moving body

iv) Force can change the shape of the body

v) Force can change the speed of a moving body

Video transcript
"hey guys welcome to lido q a video i am vinit your leader tutor bringing you this question on your screen define the term force and state the various effects of force so let us look at part a first what is force force is an external influence on a body so force is an external influence on a body which can change its in its state from rest to motion that is it can bring a body from rest to motion or it can bring or it can bring a moving body into rest right so motion to rest now let us look at part b state the various effects of force so what are the effects of force guys what are the effects of force that you can think of one from the definition itself it can move a body at rest again from the definition it can also bring a moving body to rest right moving body to rest now what else can a force do a force can change the direction direction of a movie moving body right of a moving body also it can change the shape of a body when a balance force is applied to a body from opposite directions it can change at sea so it can change the shape of a body can you think of anything else i can right it can it can change the shape of a body it can change the direction and it can change the speed of a moving body so that's that guys that was easy right so if you still have a dog please leave a comment below do like the video and subscribe to our channel i'll see you in our next video until then bye kids keep learning keep flourishing "
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