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Olin [163]
3 years ago
13

What is the instantaneous speed of the object after the five seconds?

Physics
1 answer:
OverLord2011 [107]3 years ago
7 0

Answer:

12.5 m/s

Explanation:

In a acceleration time graph the area under the curve gives the change in velocity of the object. Here object starts at rest and therefore initial velocity is 0. After 5 seconds acceleration is 5m/s2.

change in velocity=area under the curve

change in velocity= 0.5*acceleration* change in time

v-0=0.5*5*5

v=12.5 m/s

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What is the car's speed at the bottom of the dip?The passengers in a roller coaster car feel 50% heavier thantheir true weight a
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Answer:

v = 14 m/s

Explanation:

given,

radius of dip = 40 m

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8 0
2 years ago
What is the approximate mass of air in a living room 4.5m×3.4m×2.9m? the density of air is 1.29 kg/m3?
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First we have to calculate the volume of the living room:
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m = D · V
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Jane is motivating and empowering her team.
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