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ser-zykov [4K]
3 years ago
12

What is the speed of a bobsled whose distance-time graph indicates that it traveled 119m in 27s

Physics
1 answer:
BaLLatris [955]3 years ago
3 0
4ms I'm just guessing by the way

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Mac and Keena are experimenting with pulses on a rope. Mac vibrates one end up and down while Keena holds the other end. This cr
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4 0
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11) A sled is initially given a shove up a frictionless 35º incline. It reaches a maximum height of 2.5
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Answer:

7 m/s

Explanation:

To solve this problem you must use the conservation of energy.

K1 +U1=K2+U2

That math speak for, initial kinetic energy plus initial potential energy equals final kinetic energy plus final potential energy.

The initial PE (potential energy) is 0 because it hasn't been raised in the air yet. The final KE (kinetic energy) is 0 because it isn't moving. This gives the following:

KE1= \frac{1}{2}mv^{2}}

PE2=mgh

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Solve for v

v=\sqrt{2gh}

Input known values and you get 7 m/s.

5 0
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How long will a trip take in hours of you travel 450kmat an average speed of 80 km/hr
777dan777 [17]
5.625 hours and it is 450 divided by 80
Have A Good Day
4 0
3 years ago
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