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soldi70 [24.7K]
1 year ago
7

.89m/s A vehicle that starts to move from the rest gets an acceleration of 5m/s² within 2 seconds. Calculate the velocity and di

stance covered by the vehicle within the given time. [Ans: 10m/s, 10m]​
Physics
1 answer:
GuDViN [60]1 year ago
5 0

<u>Explanation:</u>

s = ?           u = 0m/s        v = ?         a = 5m/s²        t = 2s

v = u + at                  

  = 0 + (5 x 2)              

  = 10 m/s                    

s = ut + 1/2 at²

= (0)(2) +  x    \frac{1}{2}  x 5 x 2²

= 10 m

Hope this helps!

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Explanation:

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2)5.15m/s^2

3)12.69m/s

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8 0
3 years ago
Which of the following is a way earth’s water (hydrosphere) is directly affected by pollution?
ASHA 777 [7]

The toxic runoff from the farms will directly enters the water bodies of the earth through the drainage system.

The emissions from the cars will go into atmosphere and will react with water and then it will enter the earth's water. So, it is not directly affecting the earth's water.

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Hence, option (A) is correct.

6 0
2 years ago
What happens to the gravitational force between two masses when the distance between the masses is doubled?
vovangra [49]

Answer:

It decreases by a factor of 4

Explanation:

The gravitational force between two masses is given by

F=\frac{Gm_1 m_2}{r^2}

where

G is the gravitational constant

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In this problem, the distance between the masses is doubled, so

r' = 2r

Substituting into the equation, we see that the new force is

F'=\frac{Gm_1 m_2}{(2r)^2}=\frac{1}{4}\frac{Gm_1m_2}{r^2})\frac{F}{4}

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6 0
3 years ago
Can someone with an IQ score of 120 be gifted? Based on psychological thought, explain why or why not and give an example. ILL M
Pani-rosa [81]
Hello!

Yes, someone with an IQ score of 120 can be gifted. 

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As an example, professor Dean Simonton from the University of California found that an optimum leader should have an IQ in the 120-125 range, so having an IQ of 120 would mean that the individual is gifted for leadership.

Have a nice day!
7 0
2 years ago
Read 2 more answers
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Pani-rosa [81]

Answer:

equation of  motion for Bill is

y(t) = 4.9t^2

equation of  motion for Ted is

y(t) = 2 + (-4.2)(t) + 4.9t^2

Explanation:

Taking downward position positive and upward position negative

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equation of  motion for Bill is

y(t) = y_0 +v_0 t +\frac{1}{2}gt^2

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equation of  motion for Ted is

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y(t) = 2 + (-4.2)(t) +\frac{1}{2}\times (9.8t)^2

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8 0
3 years ago
Read 2 more answers
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