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.
Retardation 4 m s−2 and distance 50 m
No citable source has been recorded for this record. Treat it as practice material, not as fact.
a = (0 − 20) ÷ 5 = −4 m s−2. The distance is the average velocity times the time, 10 × 5 = 50 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
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 train starting from rest attains a speed of 72 km h−1 in 1 minute. Find its acceleration and the distance covered.
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 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
Sketch and describe the velocity-time graph of a body moving with uniform acceleration from rest.
Motion in One Dimension