What's the formula for power
2 answers:
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Answer:
g = 1.19 m / s²
Explanation:
Let's solve this problem in parts.
Let's start by looking for the speed of the pulse in the wire, the wave speed is constant
v = l / t
let's calculate
v = 1.52 / 0.0833
v = 18.25 m / s
now we can use the relationship between velocity and material properties
v =
T = v² μ
let's calculate
T = 18.25² 4.41 10-4
T = 1.4688 10-1 N
finally let's use the equilibrium condition
T - W = 0
W = T
m g = T
g = T / m
we calculate
g = 1.4688 10⁻¹ / 0.123
g = 1.19 m / s²
Answer:
Explanation:
Given
Initial speed is u=V
Maximum height of Pebble is H
Deriving maximum height of Pebble and considering motion in vertical direction
where v=final velocity
u=initial velocity
a=acceleration
s=Displacement
Final velocity will be zero at maximum height
i.e. maximum height is dependent on square of initial velocity
for twice the height
on comparing