Rory uses a force of 25 N to lift her grocery bag while doing 50 J of work. How far did she lift the
1 answer:
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Answer with Explanation:
We are given that
Speed ,=107257 kmph
Angular velocity,
Radius of earth,r=
1 km=1000 m
Linear velocity,
Linear velocity,
Velocity at point A,
Velocity at point B,
Velocity at point C,
Velocity at point D,
Answer:
x = 76.5 m
Explanation:
Let's use Newton's second law at the point of contact between the wheel and the floor.
fr = m a
fr = miy N
N-W = 0
N = W
μ mg = m a
a = miu g
a = 0.600 9.8
a = 5.88 m / s²
Having the acceleration we can use the kinematic relationships to find the distance
² = v₀² + 2 a x
= 0
x = -v₀² / 2 a
Acceleration opposes the movement by which negative
x = - 30²/2 (-5.88)
x = 76.5 m