Question

f a car at rest accelerates uniformly and attains a speed of 72km/h in 10s then it covers a distance of

Answer 1

the car will cover a distance of 2

Answer 2

Answer:

Explanation

Here: u=0,v=72 km/hr  

=72×518  

=20 m/s  

=10 sec  

The first equation of motion is  

v=u+at  

20=0+a×10  

⇒  v=u+at  

20=0+a×10  

⇒  a=2010  

=2 m/s2  

The second equation of motion  

s=ut+12at2  

=0×10+12×2×(10)2  

=100