A stone weighting 0.5kg falls from a height and strikes the ground in 4 seconds. It buries deep in sand in 0.09 seconds. The depth of penetration is (g=10m/s2)a) 100mb) 2.0mc) 1.8md) 0.9m
A stone weighting 0.5kg falls from a height and strikes the ground in 4 seconds. It buries deep in sand in 0.09 seconds. The depth of penetration is (g=10m/s2)
a) 100m
b) 2.0m
c) 1.8m
d) 0.9m










