Physicsmedium · Past Paper
An object is thrown upwards with a velocity of 19.6 m/s. How long will it take to reach the top? (g = 9.8 m/s^2)
A1 s
B2 s
C3 s
D4 s
✓ Correct Answer: B — 2 s
t = (v - u) / -g = (0 - 19.6) / -9.8 = 2 s.
Share this question
More from Physics
- A car starts from rest and reaches a speed of 20 m/s in 5 seconds. If its mass is 1000 kg, the net force is:
- An object travels 10m North and then 10m East. What is the magnitude of its displacement?
- The resistance of a conductor is inversely proportional to its:
- Intensity of sound is defined as the sound energy passing per unit _______ per unit area.
- A lens has a focal length of +10 cm. If an object is placed at 20 cm, the magnification is: