The power in an electrical circuit is given by the equation P= RR, where /is the current flowing through the circuit and Ris the
resistance of the circuit. What is the current in a circuit that has a resistance of 100 ohms and a power of 15 watts?
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[pleas ee helpppp)
2 answers:
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Answer:
the direction of rate of change of the momentum is against the motion of the body, that is, downward.
The applied force is also against the direction of motion of the body, downward.
Explanation:
The change in the momentum of a body, if the mass of the body is constant, is given by the following formula:
p: momentum
m: mass
: change in the velocity
The sign of the change in the velocity determines the direction of rate of change. Then you have:
v2: final velocity = 35m/s
v1: initial velocity = 40m/s
Hence, the direction of rate of change of the momentum is against the motion of the body, that is, downward.
The applied force is also against the direction of motion of the body, downward.