Sound waves must have intensity if a person is to hear them. a. True b. False
2 answers:
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Answer:
The work done by the force is 5.76 J
Explanation:
Given;
mass of canister , m = 3.2 kg
magnitude of force, f = 6.7 N
initial velocity of the canister on x-axis, = 3.3i m/s
final velocity of the canister on y- axis, = 6.9j m/s
The work done on the canister = change in the kinetic energy of the canister
where;
K.Ei is the initial kinetic energy
K.Ef is the final kinetic energy
The initial kinetic energy:
The final kinetic energy:
W = 11.04 - 5.28
W = 5.76 J
Therefore, work done on the canister by the 6.7 N force during this time is 5.76 J