Question

a motorcycle moving at constant velocity suddenly accelerates at a rote of 4.0m/s^2 to a speed of 35m/s in 5.0s . What was the initial speed of the motorcycle?

Answer 1

The initial speed of the motorcycle was 15 m/s.

Step-by-step explanation:

To find the initial speed of the motorcycle, we can use the equation:

final speed = initial speed + (acceleration * time)

Plugging in the given values:

Final speed = 35 m/s

Acceleration = 4.0 m/s²

Time = 5.0 s

we can rearrange the equation to solve for the initial speed:

initial speed = final speed - (acceleration * time)

Substituting the values, we get:

initial speed = 35 m/s - (4.0 m/s² * 5.0 s)

Simplifying the equation:

initial speed = 35 m/s - 20 m/s

initial speed = 15 m/s

Therefore, the initial speed of the motorcycle was 15 m/s.