Answer:
14.04 m/s
Explanation:
To find the velocity of the first car after the collision, we can use the equation of conservation of momentum:
m1v1 + m2v2 = m1'v1' + m2'v2'
We have the following data:
m1 = m1' = 328,
m2 = m2' = 790,
v1 = 19.1,
v2 = 13,
v2' = 15.1.
Using this data, we can find v1' (final velocity of the first car):
328 * 19.1 + 790 * 13 = 328 * v1' + 790 * 15.1
16534.8 = 328 * v1' + 11929
328 * v1' = 4605.8
v1' = 14.04 m/s
Mass of solid cube = 725g = 0.725kg Length of each side = 6.35cm =0.0635 m As volume = length ×length×length Volume= 0.0635×0.0635×0.0635 =0.1905 m³ ρ = m/V ρ= 0.725/0.1905 = 0.138 kg/m³ Answer
Answer:
34.3cm
Explanation:
Attached is the full solution
False because that’s not possible