An apple falls out of a tree. It takes 3.5 seconds to reach the ground. What is the apples speed in m/s as it hits the ground?

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shaonaworld

25.07.2022

Physics

How ??

Force:-

We know

According to newtons second law

$\boxed{\sf Force=Mass\times Acceleration}$

$\\ \sf\longmapsto Force=kgm/s^2$

We don't use it

$\\ \sf\longmapsto Force=Newton(N)$

Hence its a derived unit.

Pressure:-

$\\ \sf\longmapsto Pressure=\dfrac{Force}{Area}$

$\\ \sf\longmapsto Pressure=\dfrac{N}{m^2}$

$\\ \sf\longmapsto Pressure=Pascal(Pa)$

Hence its a derived unit

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