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mario62 [17]
3 years ago
11

Will mark brainlest helpp!!!!!!​

Physics
2 answers:
cestrela7 [59]3 years ago
7 0
  • initial velocity=u=0m/s
  • Final velocity=60km/h=v

Convert to m/s

\\ \Large\sf\longmapsto v=60\times \dfrac{5}{18}=16.6m/s

  • Time=t=5min=5×60=300s

We know

\boxed{\Large{\sf Acceleration=\dfrac{v-u}{t}}}

\\ \Large\sf\longmapsto Acceleration=\dfrac{16.6-0}{300}

\\ \Large\sf\longmapsto Acceleration=\dfrac{16.6}{300}

\\ \Large\sf\longmapsto Acceleration=0.05m/s^2

  • Distance=s

Using second equation of kinematics

\boxed{\Large{\sf s=ut+\dfrac{1}{2}at^2}}

\\ \Large\sf\longmapsto s=0(300)+\dfrac{1}{2}(0.05)(300)^2

\\ \Large\sf\longmapsto s=0.05\times 150^2

\\ \Large\sf\longmapsto s=0.05\times 22500

\\ \Large\sf\longmapsto s=1125m

Luda [366]3 years ago
6 0

Answer:

I don't know if it is correct or not.

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Answer:

Speed of the speeder will be 28 m/sec

Explanation:

In first case police car is traveling with a speed of 90 km/hr

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After that car is accelerating with a=2m/sec^2 for 7 sec

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So total distance traveled by police car = 224 m

This distance is also same for speeder

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4 years ago
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Answer: 321 J

Explanation:

Given

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Force applied is F=25\ N

Displacement of the box is s=15\ m

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acceleration associated with it is a=\dfrac{F}{m}

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3 0
3 years ago
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