Question

A body moving with an initial velocity of 36 km/h accelerates uniformly at the rate of 5 m/s2 for 20 seconds. Calculate the final velocity

Answer 1

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Given :-
U = 36km/h = 36×$\frac{1000}{60\times 60}$ = 10 m/s

A = 5 m/${s}^{2}$

T = 20 s


$\boxed{Final\:Velocity}$

Let's use the First Equation of Motion.


》》V = U + AT

》》V = 10 + 5×20

》》V = 10 + 100

》》V = 110 m/s $\boxed{Ans}$


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Answer 2

Hi there!

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Given :

Initial velocity (u) = 36 km/hr. = 10 m/s.

Acceleration (a) = 5 m/s².

Time taken (t) = 20 secs.

To find :

Final velocity of the body (v).

Solution :

We will use first equation of motion, while solving this question ;

According to the first equation of motion ;

v = u + at

⇒ v = 10 + 5 × 20

⇒ v = 10 + 100

⇒ v = 110 m/s.

Hence, the final velocity of the body is 110 m/s.

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Thanks for the question!

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