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miskamm [114]
2 years ago
13

What is the acceleration of a car moving in a straight line at a constant velocity of 50 km/hr for 10 seconds?

Physics
1 answer:
Marysya12 [62]2 years ago
6 0

Constant velocity means no change in speed, so the acceleration is 0.

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subs

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Read 2 more answers
Why might you want to use a single fixed pulley?
hjlf

A single fixed pulley can be used to raise or lower lightweight objects.

Option b

<u>Explanation:</u>

A pulley is a simple machine tool which is used to make lifting or lowering tasks easy.  A single fixed pulley is a system involving only one pulley fixed on a constant rigid support with a rope wrapped around the wheel. Such a system can be used only to change the direction of  applied force in raising or lowering small, lightweight objects which need minimal work force.

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