Question

pls give step by step explanation.
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Answer 1

Answer:

9) 75km/h

10) i. 40kgf

     ii. 400N

Explanation:

Mass of the body , m=40kg

The force of gravity on mass of 1kg =10N

So in kgf force = 40kgf

Again,1kgf =10 N

So force in newton = 40×10N

= 400N