A stone is thrown vertically upwards with a speed of 15 m/s. How long will it ta

A stone is thrown vertically upwards with a speed of 15 m/s. How long will it take to reach the highest point? (Take g = 10 m/s²) (2023)

A stone is thrown vertically upwards with a speed of 15 m/s. How long will it take to reach the highest point? (Take g = 10 m/s²) (2023)

Step 1: Understand that when a stone is thrown upwards, it will eventually stop rising and reach a highest point before falling back down.
Step 2: Know that the initial speed (u) of the stone is 15 m/s.
Step 3: Recognize that the acceleration due to gravity (g) is acting downwards at 10 m/s².
Step 4: To find the time (t) it takes to reach the highest point, use the formula: t = u / g.
Step 5: Substitute the values into the formula: t = 15 m/s / 10 m/s².
Step 6: Calculate the time: t = 1.5 seconds.

Kinematics – The question tests the understanding of the motion of an object under uniform acceleration, specifically the equations of motion related to vertical projectile motion.
Acceleration due to Gravity – It assesses the knowledge of how gravitational acceleration affects the motion of objects thrown vertically.