A stone is projected vertically upward with speed

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A stone is projected vertically upward with speed 15 m/s15\,\text{m/s}. How long will it take for its velocity to reduce to 5 m/s5\,\text{m/s} while still moving upward? Take upward as positive and g=10 m/s2g = 10\,\text{m/s}^2.

Related theory

Browse the problem library