Question

A truck starts from rest with an acceleration of 0.3 m/ S^2 find its speed in km/h when it has moves through 150 m​

Answer 1

v = 34.128 km/hr

Step-by-step explanation:

Given that,

The initial speed of a truck, u = 0

Acceleration of the truck, a = 0.3 m/s²

Distance moved, d = 150 m

Let the final speed of the truck is v. Using third equation of motion i.e.

`v^2-u^2=2ad\\\\v=√(u^2+2ad)`

Put all the values,

`v=√(0^2+2* 0.3* 150)\\\\v=9.48\ m/s`

or

v = 34.128 km/h

So, the final speed of the truck is equal to 34.128 km/h.