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Volgvan
3 years ago
15

A model rocket weighing 4.9 N launches from a pad. How much work does the little rocket engine do in the first 4 meters

Physics
1 answer:
USPshnik [31]3 years ago
5 0

Answer:

 Work done by the little rocket engine = 19.6 Joules.

Explanation:

 We know that work = force x displacement.

 Force = weight of rocket = 4.9 N

 Displacement = 5 meter.

 So work done by the little rocket engine = Weight of rocket x displacement.

  Work done by the little rocket engine = 4.9 x 4 = 19.6 J

    Work done by the little rocket engine = 19.6 Joules.

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A toy car of mass 0.15kg accelerates from a speed of 10 cm/s to a speed of 15 cm/s. What is the impulse acting on the car?
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4 years ago
Read 2 more answers
If a truck is heading south at a velocity of 90m/s for 10 seconds how far did it travel?
RoseWind [281]

Answer:

Truck will be at a distance of 720 m

Explanation:

Speed of the truck is given as 90 m/sec

Time for which truck travel t = 10 seconds

We have to find the distance that how much truck travel in 8 sec with speed of 90 m/sec

We know that distance is given by distance=velocity\times time

So distance traveled by truck in 8 sec will be equal to =90\times 8 =720m

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3 0
4 years ago
What is the displacement from 4 to 10 seconds? How do you know?
Strike441 [17]
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See attached photo for worked out solution.

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3 years ago
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