Question

A truck was started from rest and accelerated for 10sec and its acceleration is 10 m/s2

. What is final

velocity in km/hr ​

Answer 1

Given

A truck is in rest

• u = 0
• V= ?
• t=10sec
• a = 10m/s²

To find

• final velocity
• in km/h

Solution

From motion of Equation

• V=u+at

Putting the value in Equation

=>V = 0 + 10 × 10

=>V=100

For changing the value in km/h

multiply it with 18/5

100×18/5 = 360km/h

• 18/5 is short way to find any value in m/s to km/h
• and we also find km/h to m/s by 5/18

Hence,the value of final velocity is 100m/s