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dimulka [17.4K]
1 year ago
10

A motorist drives along a straight road at a constant speed of 15 m/s. just as she passes aparked motorcycle police officer , th

e officer starts to accelerate at 2m/s2 to over take her. assuming the officer maintains this acceleration,
a) determine the time it takes the police to reach the motorist the speed and
b) the total displacement of the officer as he overtakes the motorist
Physics
1 answer:
allsm [11]1 year ago
4 0

Explanation:

Distance traveled by motorist =(15.0m/s)t

Distance traveled by policeman =1/2(2.00m/s2)t2

(a) Intercept occurs when 15.0t =t2or t=15.0s.

(b) x(officer)=1/2(2.00m/s2)t2= 225m

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Answer:

p = 6.64 cm

Explanation:

For this exercise we use the equation of the constructor

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They tell us the focal length f = 2.2 cm and that the image as far as it can go is q = 3.29 cm, let's find the position of the object that creates this image

          \frac{1}{p} = \frac{1}{f} - \frac{1}{q}

          1 / p = 1 / 2.2 - 1/3.29

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OK. Here we go.
Watch closely:


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Did you follow that ?

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Answer:

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Explanation:

Given that,

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A car drives for 30 km with a speed of 30m/s. How much time does it take the car to travel this distance?
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                   Time  =  (distance)  /  (speed)

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