Question

Please give me the right answer ​

Answer 1

Given :

• Velocity of a car started from rest reaches 40 m/s in 10 seconds .

To Find :

• initial velocity of the car
• Acceleration of the car

Solution :

• ❥ Initial Velocity = 0m/s
• ❥ Final Velocity = 40 m/s
• ❥ Time Taken = 10seconds

now,

According to Question

Using 1st Equation :

$\\ { \underline{ \boxed{ \bf{ \purple{v = u + at}}}}} \: \: \bigstar$

Putting Values :

$:\implies\sf{40=0+a(10)}$

$:\implies\sf{40=0+10a}$

$:\implies\sf{40=10a}$

$:\implies\sf{a=\cancel\dfrac{40}{10}}$

$:\implies\sf{a=4\:{m/s}^{2}}$

So , The Acceleration of the car is 4 m/s² .

Answer 2

★ Given:-

‏‏‎ ‎

• ➺ Time = 10 s

‏‏‎ ‎

• ➺ Velocity = 40m/s

‏‏‎ ‎

• ➺ Initial velocity = 0 m/s

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★ To find:-

‏‏‎ ‎

• ➺ Initial Velocity

‏‏‎ ‎

• ➺ Acceleration

‏‏‎ ‎

★ Calculations:-

‏‏‎ ‎

The acceleration of the car:

‏‏‎ ‎

• ➺ v = u + at

‏‏‎ ‎

• ➺ 40 = 0 + a × 10

‏‏‎ ‎

• ➺ 40 = 10 × a

‏‏‎ ‎

• ➺ 40/10 = a

‏‏‎ ‎

• ➺ 4/1 = a

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• ➺ 4 m/s² = a

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. ° . The acceleration of the car is 4 m/s².

. ° . The initial Velocity is 0 m/s

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