Question

racing car has a uniform acceleration of 4 metre per second square what distance will it cover in 10 second after start​

Answer 1

Answer:

200 m

Explanation:

According to the given question,

u = initial velocity = 0 m/s

a = acceleration = 4 m/s^2

t = time = 10 sec

s = displacement

And we are asked to find the distance travelled by the racing car.

Here displacement is equal to the distance as it's a linear motion, without changing its direction.

We know,

• s = ut+1/2 at^2

Putting the values we get,

• s = 0 + 1/2 × 4×100

• s = 200 m

Thus distance travelled by the racing car is 200 m.

Answer 2

Answer:

The distance covered by the car is 200m.

Explanation:

The car is in uniform acceleration.

So the acceleration given is = 4m/ sec²

Time to cover the distance= 10 seconds

Here it is given that the car has started from rest.

Hence, from this statement, we consider that the initial velocity is 0 .

=> u= 0 m/sec

Hence we get three things:-

u=0 m/ sec

a= 4m/sec²

t=10 seconds

Hence from the given conditions, we can find the distance covered by putting the formula:- s=ut+1/2at²

So putting the given values, we get

s= 0*10 +1/2*4*(10)²

=>s= 1/2*4*100= 200 m

Hence the distance covered by the car is 200 m.

a=4