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defon
3 years ago
11

Tranh slowed his skateboard as he

Physics
1 answer:
ICE Princess25 [194]3 years ago
3 0

Answer:

Explanation:

Given parameters:

Initial velocity  = 8m/s

Final velocity  = 2m/s

Time taken  = 3seconds

Unknown and solution:

1. Is he accelerating or decelerating?

Tranh is obviously decelerating in this period. This is negative form of acceleration in which the speed reduces as the body comes to a stop.

Deceleration is a negative change in velocity with time i.e a body is reducing its velocity as time is changing.

2. What is the value?

 Mathematically;

          Deceleration  = \frac{Final velocity  - initial velocity}{time taken}

         Deceleration  = \frac{2 -8}{3}

                                  = -2m/s²

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I need help with question ii) Calculate the speed of these radio waves.
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2 years ago
Two pipes move the same amount of ideal fluid in the same amount of time. One pipe has a 2 in. diameter; the other has a 3 in. d
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Given that

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3 years ago
A particular HeNe laser beam at 633 nm has a spot size of 0.8 mm. Assuming a
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A body travels 10 meters during the first 5 seconds of its travel, and it travels a total of 30 meters over the first 10 seconds
Inessa05 [86]

Answer:

A body travels 10 meters during the first 5 seconds of its travel,and a total of 30 meters over the first 10 seconds of its travel

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The answer is 4 m/s.

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