Question

A police patrol car spots a rash driver speeding away from an
accident site 800 m away. Chasing at 172.8 km/h, the patrol car
catches up with the speeding car after 50 seconds. At what speed
was the rash driver trying to escape?​

Answer 1

Answer:

I THINK ITS 90 KM/H

Step-by-step explanation:

PLZ MAKE ME BRAIN LIST

Answer 2

Answer:

115.2km/h

Step-by-step explanation:

Speed of police car=172.8km/h

Time taken=50s

So,distance covered=s×t

=(172.8×1000/3600)×50

=2400m

When police car had spotted the rash driver, he was 800m away.

So when police car had covered 2400m,rash driver would have covered=(2400-800)m

=1600m more

In 50s,distance covered by rash driver=1600m

So,in 3600s,distance covered by rash driver=(1600/50×3600) m

=115200m

If he covers 115200m in 3600s,his speed in km/h=115.2km/h

Therefore,the rash driver was trying to escape at speed of 115.2km/h.