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Ksju [112]
4 years ago
12

at a drag race, the light turns green and 0.00125 hours later, a dragster is travelling 300 miles per hour. Calculate the accele

ration of the dragster
Physics
2 answers:
gtnhenbr [62]4 years ago
5 0
<span>240,000 miles / hour² Average acceleration can be calculated by dividing the change in speed by the elapsed time. Since the dragster's speed was 0 when the light turned green, the change in speed is simply 300 mph. Now, divide that by the time: 300 mph / 0.00125 hours = 240,000 miles / hour² By the way, 0.00125 hours is just 4.5 seconds!</span>
Dvinal [7]4 years ago
5 0

Answer:

The acceleration of the dragster is 29.80m/s²

Explanation:

Acceleration is defined as the change in velocity of a body with respect to time.

Acceleration = Change in velocity/Time

Given the velocity = 300miles/hour

Time = 0.00125hours

Converting the time to seconds and velocity to meter/seconds

Since 1hour = 3600seconds

Time = 0.00125×3600

Time = 4.5seconds.

For velocity:

1hour = 3600seconds

1mile = 1609.343m

300miles/hour = (300×1609.343m)/1×3600sec

= 482,803.2m/3600secs

= 134.112m/s

Acceleration in m/s² = 134.112/4.5

Acceleration = 29.80m/s²

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7 0
3 years ago
Which energy resource is renewable?
Alexandra [31]
The answer is B. natural gas
7 0
3 years ago
What is stored energy?
Yuri [45]
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8 0
4 years ago
A 7.25 kg7.25 kg block is sent up a ramp inclined at an angle ????=28.5°θ=28.5° from the horizontal. It is given an initial velo
Free_Kalibri [48]

Answer:

15.03 m

Explanation:

Given:

mass of the block, m = 7.25 kg

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Now, applying the work energy theorem,

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(m\times g\times\sin(\theta)\times s) + \mu_k\times mg\times s\times cos(\theta) = \frac{1}{2}\times m\times v^2

on substituting the values in the above equation, we get

(7.25\times 9.8\times\sin(28.5^o)\times s) + 0.326\times 7.25\times9.8\times s\times cos(28.5^o) = \frac{1}{2}\times 7.25\times 15^2

or

33.902\times s) +20.35\times s = 815.625

or

54.252\times s = 815.625

s = 15.03 m

Hence, the block will travel 15.03 m up the ramp

6 0
3 years ago
Hello! Please I need help on 1. (C) I dont know the formula to get the Total height using Mechanical Energy
inna [77]

Answer:

4.00m

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4 years ago
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