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3 years ago

Describe the motion of the object in Graph B of figure 11-2.

Physics

2 answers:

MatroZZZ [7]3 years ago

6 0

Explanation :

The attached graph is a distance-time graph for an object. The x-axis represents time while the y-axis represents the distance covered.

The motion can be uniform or non-uniform. When an object travels equal distances in equal intervals of time. The motion is uniform but when it does not cover equal distances in equal interval of time, the motion is non-uniform.

So, the motion in given graph B has different speed at every interval of time.

Hence, the motion of graph B is non-uniform.

kupik [55]3 years ago

4 0

Answer : The motion of the object is, non-uniform

Explanation :

Uniform motion : It is defined as the movement of an object along a straight line with constant speed. It travels equal distances in equal time interval.

The average speed of an object is similar to the actual speed of an object. The distance-time graph shows a straight line.

Non-uniform motion : It is defined as the movement of an object along a straight line with variable speed. It travels unequal distances in equal time interval.

The average speed of an object is different to the actual speed of an object. The distance-time graph shows a curved line.

The given graph B is a non-uniform motion graph.

Hence, the motion of the object is, non-uniform

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Explanation:

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The kinetic energy of the first ball is:

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$\displaystyle K_2=\frac{1}{2}m\cdot 60^2$

$\displaystyle K_2=\frac{1}{2}m\cdot 3600$

$K_2=1800m$

Being m the same for both balls, the second ball has more kinetic energy than the first ball.

To find out how much, we find the ratio:

$\displaystyle \frac{K_2}{K_1}=\frac{1800m}{450m}$

Simplifying:

$\displaystyle \frac{K_2}{K_1}=4$

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