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Thepotemich [5.8K]
3 years ago
15

7. An object can be accelerating even if its speed is

Physics
2 answers:
MatroZZZ [7]3 years ago
6 0

Answer:

D

Explanation:

If a car is moving very fast in a straight road or a highway in such a way that it has reached its limits as soon as it is going that fast it can break it limit

steposvetlana [31]3 years ago
4 0

Answer:

I think that the answer might be d

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When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart
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Answer:

11.0 kg m/s

Explanation:

The impulse exerted on the cart is equal to its change in momentum:

I=\Delta p=m\Delta v

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If the ball shown in the figure lands in 0.5 s, about what height was it thrown from?
Ede4ka [16]

Answer: 1.22 m

Explanation:

The equation of motion in this situation is:

y=y_{o}+V_{oy}t-\frac{g}{2}t^{2} (1)

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y_{o}=h is the initial height of the ball

V_{oy}=V_{o}sin(0\°)=0 is the vertical component of the initial velocity (assuming the ball was thrown vertically and there is no horizontal velocity)

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