Question

Car initially moving with a speed of 75 metre per second. final the speed of car is 85 metre per second the distance covered by car is 5 seconds is

Answer 1

Explanation:

u=75m/s

v=85m/s

t=5s

s=?

Now,we hav

s=v+u/2×t

=75+85/2×t

=160/2×6

=80×6

=480m

Answer 2

Answer:

Given :

• Initial speed = u = 75 m/s
• Final speed = v = 85 m/s
• Time = t = 5 s

To find :

• Distance travelled = s ?

Solution :

Finding the acceleration of the car :

⇒ a = (v - u)/t

⇒ a = (85 - 75)/5

⇒ a = 10/5

⇒ a = 2 m/s²

Using second equation of motion :

⇒ s = ut + ½at²

⇒ s = 75*5 + ½(2)(5)²

⇒ s = 75*5 + 25

⇒ s = 375 + 25

⇒ s = 400 m

Hence, the distance travelled by the car is 400 m.