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tia_tia [17]
3 years ago
10

An intercontinental ballistic missile goes from rest to a speed of 6.50 km/s in 60.0 s. In multiples of g, what is its accelerat

ion?
Physics
1 answer:
iragen [17]3 years ago
6 0

Answer:

The acceleration is 11.1g\ m/s^2

Explanation:

Given that,

Speed v= 6.50\ km/s=6.5\times10^{-3}\ m/s

Time t = 60.0 sec

We need to calculate the acceleration

Using formula off acceleration

a = \dfrac{\Delta v}{t}

a=\dfrac{v_{f}-v_{i}}{t}

We know that,

Missile goes from rest

So, Initial velocity =0

Put the value into the formula

a =\dfrac{6.50\times10^{3}}{60.0}

a=108.33\ m/s^2

On right hand side multiplying and dividing by g = 9.8m/s²

a=108.33\times\dfrac{g}{g}

Put the value of g

a = \dfrac{108.33}{9.8}g\ m/s^2

a = 11.1g\ m/s^2

Hence, The acceleration is 11.1g\ m/s^2

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Calculate the minimum thickness (in nm) of an oil slick on water that appears blue when illuminated by white light perpendicular
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4 0
3 years ago
When you jump from an elevated position you usually bend your knees upon reaching the ground. By doing this, you make the time o
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Answer:

c. about 1/10 as great.

Explanation:

While jumping form a certain height when we bend our knees upon reaching  the ground such that the time taken to come to complete rest is increased by 10 times then the impact force gets reduced to one-tenth of the initial value when we would not do so.

This is in accordance with the Newton's second law of motion which states that the rate of change in velocity is directly proportional to the force applied on the body.

Mathematically:

F\propto\frac{d}{dt} (p)

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since mass is constant

F=m\frac{d}{dt}v

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F'=\frac{F}{10} the body will experience the tenth part of the maximum force.

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You stand on a straight desert road at night and observe a vehicle approaching. This vehicle is equipped with two small headligh
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Answer:

They can be seen from a distance of 4.372 kilometers.

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Using the Reyligh creterion for diffraction through a circular aperture we have

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