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Where v is the final velocity (in m/s), u is the initial velocity (in m/s), a is the acceleration (in m/s²) and t is the time (in seconds).
Find v when u is 19 m/s, a is 3 m/s², and t is 21 seconds.

Respuesta :

The value of v, final velocity, is 82 m/s

Calculating velocity

From the question, we are to calculate the final velocity, v

From one of the equations of linear motion, we have that

v = u + at

Where v is the final velocity

u is the initial velocity

a is the acceleration

and t is the time

From the given information

u = 19 m/s

a = 3 m/s²

t = 21 seconds

Putting the parameters into the equation,

v = u + at

v = 19 + 3(21)

v = 19 + 63

v = 82 m/s

Hence, the value of v, final velocity, is 82 m/s

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