Question

A car covers a semi circular track of radius 5m with a constant speed of π m/s . Find the magnitude of displacement and average velocity.

Answer 1

questions

A car covers a semi circular track of radius 5m with a constant speed of π m/s . Find the magnitude of displacement and average velocity

answer

Radius = 5 m

velocity v = πm/s

the displacement is the product speed and time

$d = v \times t$

the time is

$t = \frac{d}{v}$

$t = \frac{\pi \: r}{\pi}$

t = r = 5

the displacement of the car is 2r

so.

displacement = 10 m

$average \: velocity \: = \frac{displacement}{time}$

$v \: av \: = \frac{10}{5}$

v av = 2 m/ s

Answer 2

questions

A car covers a semi circular track of radius 5m with a constant speed of π m/s . Find the magnitude of displacement and average velocity

answer

Radius = 5 m

velocity v = πm/s

the displacement is the product speed and time

$d = v \times t$

the time is

$t = \frac{d}{v}$

$t = \frac{\pi \: r}{\pi}$

t = r = 5

the displacement of the car is 2r

so.

displacement = 10 m

$average \: velocity \: = \frac{displacement}{time}$

$v \: av \: = \frac{10}{5}$

v av = 2 m/ s