Forces and motion

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Question 10
Easy

A student drops a small steel sphere into a measuring cylinder filled with glycerin.

a.

The mass of the steel sphere is 0.12 kg0.12 \text{ kg}0.12 kg. The gravitational field strength is g=9.8 N/kgg = 9.8 \text{ N/kg}g=9.8 N/kg. Calculate the weight of the steel sphere. Use the equation: $\text{weight} = \text{mass} \times \text{gravitational field strength}$

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b.

The student measures the time taken for the sphere to fall a distance of 0.484 m0.484 \text{ m}0.484 m through the glycerin. The times recorded for three consecutive drops are 1.24 s1.24 \text{ s}1.24 s, 1.18 s1.18 \text{ s}1.18 s, and 1.21 s1.21 \text{ s}1.21 s. Calculate the mean time taken for the sphere to fall.

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c.

Calculate the mean speed of the steel sphere using your calculated mean time and the formula: $\text{speed} = \frac{\text{distance}}{\text{time}}$

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Forces and motion Questions

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