Q1 · medium · AI-verified
A ball is thrown vertically upward with a velocity of 20 m/s. What is the maximum height reached by the ball? (g = 10 m/s²)
- 40 m
- 10 m
- 25 m
- 20 m
Q2 · hard · AI-verified
Two stones are thrown vertically upward simultaneously from the same point with speeds 20 m/s and 30 m/s. The ratio of the maximum heights reached by them is (g = 10 m/s²):
- 16 : 81
- 1 : 2
- 2 : 3
- 4 : 9
Q3 · easy · AI-verified
A projectile is launched horizontally from a height of 80 m. How long does it take to reach the ground? (Take g = 10 m/s²)
- 2 s
- 6 s
- 8 s
- 4 s
Q4 · medium · AI-verified
Two objects are thrown from the same point simultaneously — one vertically upward at 40 m/s and another vertically downward at 40 m/s. What is the relative velocity of the first object with respect to the second object?
- 40 m/s upward
- 0 m/s
- 80 m/s upward
- 80 m/s downward
Q5 · easy · AI-verified
A ball is thrown vertically upward with a velocity of 20 m/s. How high will it rise? (Take g = 10 m/s²)
- 40 m
- 30 m
- 20 m
- 10 m