An object is thrown vertically upwards with a speed of 20 m/s. How long will it

An object is thrown vertically upwards with a speed of 20 m/s. How long will it take to reach the maximum height?

An object is thrown vertically upwards with a speed of 20 m/s. How long will it take to reach the maximum height?

Step 1: Understand that when an object is thrown upwards, it will eventually stop rising and reach a maximum height before falling back down.
Step 2: Know that the initial speed (u) of the object is 20 m/s.
Step 3: Recognize that the acceleration due to gravity (g) acts downwards and is approximately 9.8 m/s².
Step 4: Use the formula to find the time (t) to reach maximum height: t = u / g.
Step 5: Substitute the values into the formula: t = 20 m/s / 9.8 m/s².
Step 6: Calculate the result: t = 20 / 9.8, which equals approximately 2.04 seconds.

Kinematics – The question tests the understanding of the equations of motion, specifically how to calculate the time taken to reach maximum height when an object is thrown vertically upwards.
Acceleration due to Gravity – It assesses knowledge of gravitational acceleration (approximately 9.8 m/s²) and its role in vertical motion.