Question

A body of mass 40 g is moving with a constant
velocity of 2 cm s-'on a horizontal frictionless
table. The force on the table is :​

Answer 1

Answer:

The force is 80 erg...

Explanation:

Use the formula,

Force= mass× velocity.

And, 1g×1cm/s = 1erg...

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Answer 2

Answer:

m=40g,4×10^−2kg,v=2cm/s=2×

10^−2m/s

N=mg

(4×10^−2)9.8N

39.2×10^−2N

0.392N