Answer:
v = - 0.4 m/s
Explanation:
Initial momentum is zero as neither gun nor bullet have velocity
Conservation of momentum
0 = 0.020(50) + 2.5v
v = - 0.4 m/s
Answer:


Part b)

Explanation:
magnetic field due to external source is given as

area of the loop is given as



Now we have





now we need to find the time at which voltage is 0.1 Volts so we have


Part b)
If magnetic field is inclined at an angle of 30 degree with the normal of the loop then

now we know that induced EMF is given as




Answer:
a)
b)
c) Therefore it is a nonconservative force
Explanation:
Distance traveled in one complete circular trip against friction

The force of friction is


The work of friction is the force of friction in the distance so

a).






b).


c).
Since the circle returns to its initial position in both cases and the work done by the friction force different in both cases, so the friction force does depend on the path;
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