A ball is dropped from a height of 20m. How long does it take for the ball to reach ground?
Use SUVAT. Height is 20m, initial speed is 0m/s, acceleration is 10m/s^2, and you need to find time. Therefore use s = ut + 1/2 at^2, and rearrange to get a value for t as t = 2s.
LT
Related Physics GCSE answers
All answers ▸What are Newton's 3 laws of motion?
Explain how an electromagnetic motor works?
Circut is arranged in a loop, with resistor (5 ohm), power source(2V), resistor (3 ohm), and another power source (3V) connected subsequently. What is the voltage on 5ohm resistor?
What is the importance of the resultant force in a free-fall question?