Question

The speed of a 200kg motorcycle is started from rest to 10m/s in 5 sec find force​

Answer 1

Answer

Force = 400 N

Given

The speed of a 200 kg motorcycle is started from rest to 10 m/s in 5 sec

To Find

Force

Concept Used

→ Force is defined as product of mass and acceleration

$\star \; \rm \; F=ma$

→ Acceleration is defined as rate of change in velocity

$\star \;\; \rm a=\dfrac{v-u}{t}$

Solution

Mass , m = 200 kg

Initial velocity , u = 0 m/s

Since  , starting from rest

Final velocity , v = 10 m/s

Time , t = 5 s

Force , F = ? N

Apply formula ,

$\to\ \rm F=ma\\\\\rm \to\ F=m\bigg(\dfrac{v-u}{t}\bigg)\\\\\rm \to\ F=(200)\bigg(\dfrac{10-0}{5}\bigg)\\\\\rm \to\ F=200\times \dfrac{10}{5}\\\\\rm \to\ F=40\times 10\\\\ \to\ \rm{\pink{F=400\ N\ \; \bigstar}}$

So , Force = 400 N