Question

how much Momentum will a dump bell of mass 10kg transfer to the floor if it falls from a height of 80 CM take its downward acceleration to be 10 metre per second square​

Answer 1

Answer:

u = 0 , a = 10 , s = 80cm = 0.8 m , v = v ( let )

Use 3rd equation if motion

$2as = {v}^{2} - {u}^{2} \\ \\ 2(10)(0.8m) = {v}^{2} - 0 \\ \implies \\ {v}^{2} = 16 \: \: or \: \: v = \sqrt{16} = 4$

So momentum

$p = mv = 10 \times 4 = 40 \: kgms {}^{ - 1}$

Answer 2

Explanation:

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