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3 years ago

6

A parachute on a racing dragster opens and changes the speed of the car from 95 m/s to 35 m/s in a period of 6.5 seconds. What i

s the acceleration of the dragster?

1 answer:

tatiyna3 years ago

6 0

Answer:

30 miles

Explanation:

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What is the acceleration of a 4,000 kg car pushed with a<br> force of 12,000 N?

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3 m/s

Explanation:

A= F/m

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2 years ago

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How fast would a 2-kilogram object need to move to have the same kinetic

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Answer:

11.3 m/s

Explanation:

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A 5000kg freight car moving at 2 m/s East collides with a 10,000kg freight car at rest. Upon collision, they got stuck and moved

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2 years ago

Why does the density of a substance remain the same for different amounts of the substance

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The molarity remains the same so the ratio does not change

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3 years ago

A skier leaves the horizontal end of a ramp with a velocity of 31.0 m/s and lands 156.3 m from the base of a ramp how high is th

BartSMP [9]

<u>Answer:</u>

The height of ramp = 124.694 m

<u>Explanation:</u>

Using second equation of motion,

$s = ut + \frac{1}{2}at^2$

From the question,

u = 31 m/s; s = 156.3 m, a=0

substituting values

$156.3 = 31\times t + 0$

t = $\frac{156.3}{31 }$

= 5.042 s

Similary, for the case of landing

t = 5.042 s; initial velocity, u =0

acceleration = acceleration due to gravity, g = 9.81 $m/s^2$

Substituting in $h = ut + \frac{1}{2}gt^2$

$h = 0 + \frac{1}{2} \times 9.81 \times (5.042)^2$

h = 124.694 m

So height of ramp = 124.694 m

3 0

3 years ago