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nasty-shy [4]
3 years ago
9

EMERGENCY Can someone help me for 1-7 please.

Physics
1 answer:
Vinil7 [7]3 years ago
8 0
1. B
2. C
3. A
4. A
5.C
6.D
7.B

Sorry tried my best
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Sam is observing the velocity of a car at different times. After two hours, the velocity of the car is 54 km/h. After four hours
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With that information you can only suppose a uniformly accelerated motion.  This is, acceleration is constant.

Then, acceleration = change in velocity / change in time = (58 -54)km/h / 2 h = 4km/h / 2 h = 2 km/h^2

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Valid for constant acceleration. 
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Hummingbirds may seem fragile, but their wings are capable of sustaining very large forces and accelerations. (Figure 1) shows d
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Acceleration is mathematically defined as; ΔV/t.

<h3>What is acceleration?</h3>

Acceleration is defined as the ratio of the change in velocity to time. It is defined as the extent to which the velocity changes within a given time interval.

The question is incomplete so we can not arrive at the final answer. However, acceleration is mathematically defined as; ΔV/t.

Learn more about acceleration: brainly.com/question/2437624

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