Acar starts from rest and accelerates to 45.0 m/s in 15 seconds, after which it travels at a constant speed for 1.0 minute, and then comes to rest in 30 seconds. calculate the acceleration of the car during the first 15 seconds.

3m/s^2

Explanation:

Plot a speed time graph to see it better

basically

acceleration = Final velocity- initial velocity/time (s)

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

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