Answer:
J=0.211kg.m/s
Explanation:
The impulse-momentum theorem states:
The velocity before the impact is given by:
For the velocity after the impact:
so:
Answer:
3.18 V
Explanation:
RMS voltage of a generator is given by:
Given:
Output voltage at t =0.01 s is 4.2 V
Explanation:
Speed is the rate of change of distance with time. It is a scalar quantity with magnitude both no direction.
Speed =
The unit is m/s or km/hr or mile/hr
Distance covered is simply the length of the path traveled.
The unit is m or km or miles
Time taken is the duration of an event.
The unit is seconds or minutes or hour.
Velocity is built from speed and direction. Speeding up, slowing down, and changing direction are all the possible forms of acceleration. They're all caused by unbalanced external forces.