Question

Question 4 (2 points)

A toy plane is thrown upward with an initial velocity of 7 meters per second from an
initial height of 4 meters.
About how much time does it take for the plane to hit the ground?​

Answer 1

The toy plane takes approximately 2.5 seconds to hit the ground.

Step-by-step explanation:

To find the time it takes for the toy plane to hit the ground, we can use the concept of free fall. The toy plane is thrown upward with an initial velocity of 7 m/s, and the initial height is 4 meters. We can use the equation h = v₀2 - u₀2 / (2g) to find the time it takes to reach the ground, where h is the distance, v₀ is the final velocity, u₀ is the initial velocity, and g is the acceleration due to gravity.

Using the formula, we have h = 0 - 7² / (2 × (-9.8)).

Simplifying the equation, we get h = -49 / (-19.6), which gives h = 2.5 seconds.