A motorcycle accelerates from a stop at a rate of 4m/s 2 for 20 seconds. It then continues at a

Physics

1 answer:

8_murik_8 [283]2 years ago

4 0

After 20 s, the motorcycle attains a speed of

$\left(4\dfrac{\rm m}{\mathrm s^2}\right)(20\,\mathrm s)=80\dfrac{\rm m}{\rm s}$

and it continues at this speed for the next 40 s. So at 45 s, its speed is 80 m/s.

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<h2>ANSWERS </h2>

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