Freefall Problems

Front

What is the velocity of an object when it returns to its starting point after being thrown upwards?

Back

-14 m/s

Front

How much time does an object thrown upwards with a speed of 14 m/s spend in the air before returning to the same height?

Back

2.85 s

Front

If an object is dropped from a height of 15 m, how long does it take to hit the ground?

Back

1.75 s

Front

How high will a stone be after 2 seconds if tossed upwards at a speed of 12 m/s?

Back

4.4 m

Front

Which graph correctly illustrates freefall?

Back

Graph B

Front

Define freefall.

Back

Freefall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.81 m/s².

Front

What is the formula to calculate the time of flight for an object thrown upwards?

Back

Time of flight = (2 * initial velocity) / g, where g is the acceleration due to gravity.

Front

What is the maximum height reached by an object thrown upwards?

Back

Maximum height = (initial velocity²) / (2 * g).

Front

What happens to the velocity of an object thrown upwards as it rises?

Back

The velocity decreases until it reaches zero at the maximum height.