pls tell me guys its too important pls a request pls tell me the correct answers pls
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Answer 19 :- Force when applied on a non-rigid body cause a change in its dimension and can also produce motion in it. On the other hand, force when applied on a rigid body doesn't change it's dimension but can produce motion in it.
Answer 20 :- (Sorry but I don't know its answer ☹️)
Answer 21 :- A cork piece floats on water surface while an iron nail sinks in it because the density of cork is less than that of water.
I hope except 20 question all other question are helpful to you.... If yes please mark me as Brainliest
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