Physics
posted by Diana .
A car travels in a straight line for 5.4 h at a
constant speed of 79 km/h .
What is its acceleration?
Answer in units of m/s2.

Physics 
bobpursley
constant speed is zero acceleration.

Physics 
kota
A car, moving along a straight stretch of high way, begins to accelerate at 0.0121 m/s2. It takes the car 66.5 s to cover 1 km.
How fast was the car going when it first began to accelerate?
Answer in units of m/s.
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