Question

an object moving North with an initial velocity of 14 m s accelerates 5 Ms ^2 for 20 seconds what is the final velocity of the object

Answer 1

Answer:

The final velocity of the object is 114 m/s.

Explanation:

It is given that,

Initial velocity of the object, u = 14 m/s

Acceleration of object, $a=5\ m/s^2$

Time taken, t = 20 s

Let v is the final velocity of the object. It can be calculated using first equation of motion as :

$v=u+at$

$v=14\ m/s+5\ m/s^2\times 20\ s$

v = 114 m/s

So, the final velocity of the object is 114 m/s. Hence, this is the required solution.

Answer 2

The final velocity is 114m/s
$5 = \frac{x - 14}{20} \\ x = \frac{20 \times 5}{1} + 14 = 100 + 14 \\ 114$


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