Question

a car moving with an initial velocity of 25 metre per second in north has a constant acceleration of 3 metre per second a South after 6 seconds its velocity will be​

Answer 1

Answer:

V= 7 m/s

Explanation:

In this problem, velocity and acceleration are

in opposite directions (see figure)

So, acceleration will be negative

Using first equation of motion,

→ v = u +at

u = 25m/s

a= -3 m/s²

t= 6 s

v = 25 - 3(6)

v= 25-18

v= 7m/s

Answer 2

Answer:

7 m/s north

Explanation:

as velocity given toward North and acceleration toward south both are opposite so acceleration will be negitive