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strojnjashka [21]
2 years ago
14

At what point is the car the fastest

Physics
2 answers:
Dmitry [639]2 years ago
6 0

C,  t=3.4s. The velocity of the car increases as you go up the y axis

Svetach [21]2 years ago
5 0

3.4 is the max value of speed from curve and v axis

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Answer:

b

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Calculate the force at sea level that a boy of mass 50 kg exerts on a chair in which he is sitting.
kogti [31]

As per the question the mass of the boy is 50 kg.

The boy sits on a chair.

We are asked to calculate the force exerted by the boy on the chair at sea level.

The force exerted by boy on the chair while sitting on it is nothing else except the force of gravity of earth i.e the weight of the body .The direction of that force is vertically downward.

At sea level the acceleration due to gravity g = 9.8 m/s^2

Hence the weight of the boy w = mg  [m is the mass of the body]

we have m = 50 kg.

                             Hence w = 50 kg ×9.8 m/s^2

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Here newton [N] is the unit of force.





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3 years ago
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