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huong03
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1. A rabbit and a tortoise compete in a 100 meter race. The tortoise moves at a uniform speed of 10 cm/s. The rabbit took a nap for 16 minutes. After the rabbit wake up, he accelerates at a uniform rate of 0.15 m/s^2.
a) Draw a time vs. velocity of the motion of the tortoise and the rabbit? (I'm clueless!)
b) How long does it take for the tortoise to complete the race?
(It takes the tortoise 1000 seconds to win the 100 meter race, right?)
c) How far has the rabbit moved at this time?
d) Who won the race? The tortoise, right? but why?
e) If the rabbit had taken a 15 minutes nap instead, what is his required acceleration for the race to be tie?
2. Is the following formula right?
a) average velocity = (vector)/time
b) average speed = lmagnitudel/ time
Please help, thanks.
a) Draw a time vs. velocity of the motion of the tortoise and the rabbit? (I'm clueless!)
b) How long does it take for the tortoise to complete the race?
(It takes the tortoise 1000 seconds to win the 100 meter race, right?)
c) How far has the rabbit moved at this time?
d) Who won the race? The tortoise, right? but why?
e) If the rabbit had taken a 15 minutes nap instead, what is his required acceleration for the race to be tie?
2. Is the following formula right?
a) average velocity = (vector)/time
b) average speed = lmagnitudel/ time
Please help, thanks.
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