9.2.2 - MOTION OF OBJECTS UNDER THE INFLUENCE OF GRAVITATIONAL FORCE OF THE EARTH
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Practice Questions
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If a stone and paper are dropped at the same time in a vacuum, which hits the ground first?
💡 Hint: Think about the effect of air resistance.
What is the constant acceleration due to gravity on Earth?
💡 Hint: It's the same value we use in our calculations for gravity.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the acceleration due to gravity on Earth?
💡 Hint: Think about the standard value used in physics.
True or False: In a vacuum, a feather will fall faster than a stone.
💡 Hint: Recall what happens in the absence of air.
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Challenge Problems
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An object is dropped from a height of 80 m. How long does it take to reach the ground? Assume g = 9.8 m/s^2.
💡 Hint: Rearrange the formula to solve for time.
A rock thrown upwards at 30 m/s reaches a height of 45 m. How long does it take to reach this height?
💡 Hint: Remember to use the negative acceleration due to gravity when solving.
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