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2 years ago

why is time an independent variable and position is a dependent variable in a position versus time graph

Physics

1 answer:

zhuklara [117]2 years ago

8 0

Because the position depends on the amount of time that has passed.

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A caris initially at rest starts moving with a constant acceleration of 0.5 m/s2 and travels a distance of 5 m. Find

EleoNora [17]

Answer:

(I)

${ \bf{ {v}^{2} = {u}^{2} - 2as }} \\ {v}^{2} = {0}^{2} - (2 \times 0.5 \times 5) \\ {v}^{2} = 5 \\ { \tt{final \: velocity = 2.24 \: {ms}^{ - 1} }}$

(ii)

${ \bf{v = u + at}} \\ 2.24 = 0 + (0.5t) \\ { \tt{time = 4.48 \: seconds}}$

8 0

2 years ago

A 97.6-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is μk =

Mila [183]

Answer:

$v=6.65m/sec$

Explanation:

From the Question we are told that:

Mass $m=97.6$

Coefficient of kinetic friction $\mu k=0.555$

Generally the equation for Frictional force is mathematically given by

$F=\mu mg$

$F=0.555*97.6*9.8$

$F=531.388N$

Generally the Newton's equation for Acceleration due to Friction force is mathematically given by

$a_f=-\mu g$

$a_f=-0.555 *9.81$

$a_f=-54455m/sec^2$

Therefore

$v=u-at$

$v=0+5.45*1.22$

$v=6.65m/sec$

4 0

2 years ago

List three measurements with different units this are equal to 5 meters

olganol [36]

5kg
50cm
500in
Hope this helped good luck to you

6 0

2 years ago

HeLp AsAp!!!!!! How long would it take you to hop 30 meters based on your speed for the 5-meter trial? Show your work!

Novosadov [1.4K]

Answer:

20.5s

Explanation:

Given parameters:

Distance = 30m

Unknown:

Time = ?

Solution:

The time it will take to hop a distance of 30m using the speed for the 5m trial is the duration of the trip.

The speed for the 5m trial = 1.46m/s

Now;

Speed = $\frac{distance}{time}$

Distance = speed x time

time = $\frac{distance }{speed}$

Input the parameters and solve;

time = $\frac{30}{1.46}$ = 20.5s

7 0

3 years ago

What is the best definition for hypothermia? Damage to skin caused by long exposure to freezing temperatures Very low internal b

Murljashka [212]

Answer:

Advertisement. When your body temperature drops, your heart, nervous system and other organs can't work normally. Left untreated, hypothermia can lead to complete failure of your heart and respiratory system and eventually to death. Hypothermia is often caused by exposure to cold weather or immersion in cold water.

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2 years ago