How much momentum will a body of mass 200g transfer to the floor if it falls from a
height of 180 cm? Take its downward acceleration to be 10m/s2
Answers
Given : a body of mass 200g falls from a height of 180 cm
g = 10 m/s²
To Find : How much momentum will be transferred to floor
Solution:
momentum is the product of the mass and velocity of an object.
momentum = P
mass = m
velocity = v
P = mv
m = 200 g = 0.2 kg
h = 180 cm = 1.8 m
g = 10 m/s²
V² - U² = 2aS
U = 0
a = g = 10
S = h = 1.8
V = ?
V² - 0 = 2(10)(1.8)
=> V² = 6
=> V = 6 m/s
Momentum = 0.2 * 6 = 1.2 kgm/s
Assuming body will be at rest after reaching floor
Then momentum transferred to floor will be 1.2 kgm/s
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Answer:
momentum = P
mass = m
velocity = v P = mv
m = 200 g = 0.2 kg
h = 180 cm = 1.8 m
g = 10 m/s ^ 2
V ^ 2 - U ^ 2 = 2aS
U = 0
a = g = 10
S = h = 1.8
V = ?
V ^ 2 - 0 = 2(10) * (1.8)
=> V² = 6
=> V = 6 m/s
Momentum = 0.2*6 = 1.2 kgm/s Assuming body will be at rest after reaching floor.
Then momentum transferred to floor will be
1.2 kgm/s.