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Levart [38]
3 years ago
11

. A car goes from 0 to 100 km/hr in 10 seconds. What is its acceleration? 

Mathematics
1 answer:
Ugo [173]3 years ago
5 0
3.6 km/hr 10s= 1/6 min=1/360hr acceleration=100/(1/360)= 36,000 km/h^2 im/s+(0.001)km/(1/3600)s= 3.6km/hr
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Answer:

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Step-by-step explanation:

It is given that,

A rock is thrown up from the ground at a velocity of 84 feet per second. The formula h = -16t^2 + 84t gives the rock's height in feet after t second.

We need to find the maximum height of the rock. For maximum height put \dfrac{dh}{dt}=0

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\dfrac{d( -16t^2 + 84t)}{dt}=0\\\\-32t+84=0\\\\t=\dfrac{84}{32}\\\\t=2.62\ s

Put t = 2.62 s in the equation of height. So,

h = -16(2.62)^2 + 84(2.62)\\\\h=110.24\ m

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Step-by-step explanation:

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