Physics question????

Question

What is the acceleration of a car that travels in a straight line at a constant speed of 90 km/h?

________________m/s2

Answer 1

a = dv/dt

v = 90

a = d/dt(90) = 0

Answer 2

constant speed = 0m/s^2

Answer 3

zero,because acceleration is change in speed. if the speed is constant then the acceleration is equal to zero.

Answer 4

you stupid r****d! if something is traveling at a CONSTANT velocity, it has no acceleration!   a=0 m/s^2

Answer 5

Acceleration means change in velocity. You said it was moving with a constant velocity. Therefore it has zero acceleration.