Unit 2 Review 24/25

Front

What is the formula to calculate the final velocity of an object in motion given initial velocity, acceleration, and distance?

Back

v_f^2 = v_i^2 + 2ad

Front

What is the time taken for an object thrown upwards to reach its maximum height if the initial speed is 40 m/s?

Back

4 seconds

Front

If a ball is thrown upward with an initial speed of 30 m/s, how long does it take to reach its maximum height?

Back

3 seconds

Front

What is the acceleration due to gravity that affects objects thrown upwards?

Back

Approximately -9.8 m/s² (negative indicates direction towards the Earth).

Front

What is the relationship between time of ascent and time of descent for an object thrown vertically?

Back

Time of ascent equals time of descent if launched and landed at the same height.

Front

What is the formula to calculate the distance traveled by an object under constant acceleration?

Back

d = v_i * t + 1/2 * a * t^2

Front

What is the initial velocity of a ball thrown upward if it reaches a maximum height after 3 seconds?

Back

30 m/s (using v = v_i + at, where v = 0 at max height).

Front

What is the significance of the point where a ball thrown upwards has a speed of 0 m/s?

Back

It is the maximum height of the ball's trajectory.

Front

What is the minimum runway length required for a plane with a takeoff speed of 65 m/s and an acceleration of 3 m/s²?

Back

Use the formula v_f^2 = v_i^2 + 2ad to calculate the distance.

Front

What happens to the velocity of a ball thrown upwards as it rises?

Back

The velocity decreases until it reaches 0 m/s at the maximum height.