A stone is thrown vertically upward with a speed of 20 m/s. How long will it tak
Practice Questions
Q1
A stone is thrown vertically upward with a speed of 20 m/s. How long will it take to reach the maximum height? (Assume g = 10 m/s²)
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Questions & Step-by-Step Solutions
A stone is thrown vertically upward with a speed of 20 m/s. How long will it take to reach the maximum height? (Assume g = 10 m/s²)
Step 1: Identify the initial speed of the stone, which is 20 m/s.
Step 2: Identify the acceleration due to gravity (g), which is 10 m/s².
Step 3: Understand that the stone will stop rising when its speed becomes 0 m/s at the maximum height.
Step 4: Use the formula to find the time to reach maximum height: Time = Initial Speed / g.
Step 5: Plug in the values: Time = 20 m/s / 10 m/s².
Step 6: Calculate the time: 20 / 10 = 2 seconds.
Kinematics – The study of motion, specifically how objects move under the influence of forces, including the equations of motion for objects in free fall.
Acceleration due to Gravity – Understanding that objects in free fall experience a constant acceleration downwards, typically denoted as 'g', which is approximately 9.81 m/s² but can be approximated as 10 m/s² for simplicity in calculations.
