A stone is dropped from a height of 45 m. Find the time it takes to reach the ground and its speed on landing. Take g = 10 m s−2.
Motion in One Dimension
Original Khojo Papers practice question — not from a past board paper.
Acceleration 1/3 m s−2 and distance 600 m
No citable source has been recorded for this record. Treat it as practice material, not as fact.
72 km h−1 is 20 m s−1, so a = 20 ÷ 60 = 1/3 m s−2. The distance is the average speed times the time, 10 × 60 = 600 m.
From the same topic and chapter, at a similar level.
A stone is dropped from a height of 45 m. Find the time it takes to reach the ground and its speed on landing. Take g = 10 m s−2.
Motion in One Dimension
A body travels with a uniform velocity of 15 m s−1 for 4 s and then accelerates at 2 m s−2 for a further 3 s. Find the total distance travelled.
Motion in One Dimension
What does the slope of a distance-time graph represent, and what does the area under a velocity-time graph represent?
Motion in One Dimension
A body starts from rest and moves with a uniform acceleration of 2 m s−2 for 5 s. Find its final velocity and the distance travelled.
Motion in One Dimension
A car moving at 20 m s−1 is brought to rest in 5 s. Find its retardation and the distance it travels in that time.
Motion in One Dimension
Sketch and describe the velocity-time graph of a body moving with uniform acceleration from rest.
Motion in One Dimension