Question

. A racing car has a uniform acceleration of 4m/s2. What distance will it cover in 10s after start? ​

Answer 1

Answer:

DISTANCE = 200m

Explanation:

a = 4 m/s²

t = 10sec

u = 0m/s

s = ut + 1/2 at²

s = 0 x 10 + 1/2 x 4 x 10 x 10

s= 0 + 200

s = 200m

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Answer 2

Answer:

Given:

• A racing car has a uniform acceleration of 4m/s2.

Find:

• What distance will it cover in 10s after start? 

Know terms:

1. Acceleration = (a)
2. Time = (t)
3. Initial velocity = (u)
4. Distance = (D)

Using formula:

☆ ${\sf{\underline{\boxed{\red{\sf{D = ut + ^{1/2} at^2}}}}}}$

Calculations:

⇒ $\bold{D = 0(10) + ^{1/2} [4 \times 10 \times 10]}$

⇒ $\bold{D = 0 + 2(100}$

⇒ $\bold{D = 200 \:m}$

Therefore, 200 m is the distance covered in 10s after start.