A 6.0 kg rock falls from a cliff and hits the ground at 32.5 m/s. a) Determine the kinetic energy. b) How much potential energy
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Answer:
63 m
Explanation:
The initial velocity of the motorcycle is
The final velocity is
And the time taken is
Since the acceleration of the motorcycle is uniform, we can find the distance traveled by the motorcycle during this time by using the following SUVAT equation:
Substituting numbers into the equation, we find
Answer:
Explanation:
For discharge of capacitor in RC circuit , the relation is as follows
V is voltage across the capacitor , V₀ is maximum voltage across capacitor , λ is time constant and t is the time after which the voltage is recorded. During discharge this will also be voltage across resistance .
Taking log on both sides
lnV = lnV₀ -
Given equation
[lnV] = - .027 t + 2.5
Comparing these equation
λ = 37 s
time constant = 37 sec.