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3 years ago

A 0.15 kg baseball falls to the ground with an acceleration of 9.8 m/s2. What is the weight of the baseball?

Physics

1 answer:

bagirrra123 [75]3 years ago

8 0

Answer:

1.47 N

Explanation:

Weight: Weight can be defined as the gravitational pull on a body. The S.I unit of weight is Newton (W).

Weight is a vector quantity and as such it can be expressed in both magnitude and direction

The formula of weight is given as,

W = mg ..................... Equation 1

Where W = weight of the base ball, m = mass of the base ball, g = acceleration due to gravity of the base ball.

Given: m = 0.15 kg, g = 9.8 m/s².

Substitute into equation 1

W = 0.15(9.8)

W = 1.47 N

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$\displaystyle \frac{480}{7}\approx 68.6\; \rm mph$ .

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Similarly, time spent on the second half of the trip:

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$\displaystyle \frac{5}{12} + \frac{5}{16} = \frac{35}{48} \; \rm hours$ .

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$\begin{aligned} \text{Average speed} &= \frac{\text{Total Distance}}{\text{Total Time}}\\ &= 50 \left/\frac{35}{48}\right.\\ &= 50 \cdot \frac{48}{35} \\&= \frac{480}{7}\approx 68.6\; \rm mph \end{aligned}$ .

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