Answer:
A) reduce the velocity
B) 1000 rpm
Explanation:
A) Given that the driven gear wheel has more teeth (56) than the driver gear wheel (14), then the velocity is reduced.
B) Given that:
number of teeth * revolutions per minute = constant
then:
14*4000 = 56000
56*rpm = 56000
rpm = 56000/56
rpm = 1000