Question

If a car accelerated from 5 m/s to 25 m/s in 10 seconds, how far will it travel

Answer 1

Answer:

s=150 m

Explanation:

given: u=50 m/s, v=25 ,m/s t=10 sec, s=?  and a=?

form 1st eqn. of motion..,

v = u + a x t

25 = 5+a x 10

i.e. a = 2 m/s

and now using 2nd eqn. of motion..,

s = ut + 1/2 x a x t ^2

i.e. s = 5 (10) + 1/2 (2) x (10)^2

s = 50 + 100 m

s = 150 m

Answer 2

Answer:

Car travells 0.2 km or 200m

Explanation:

Distance=?

Time(t)= 10 s

Acceleration (a) = (25-5)m/s =>20m/s

Acceleration = Distance/Time

a = S / t

20 = S/10

S= 20×10

S= 200 m =>0.2 km

The car travels 0.2 km