A block of mass 10kg is moved at a constant speed through a horizontal distance of 4m, by applying a force 50N. How much work ha
s been done when the force is applied in direction?
1- in the same direction of displacement
2- at an angle of 30 with displacement
1- in the same direction of displacement
2- at an angle of 30 with displacement
1 answer:
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Answer:
(a) Tangential velocity will be 38.648 m/sec
(b) Acceleration will be
Explanation:
We have given radius r = 11.2 m
Angular speed
(a) We have to find the tangential velocity
We know that tangential velocity is given by
(b) We know that acceleration is given by
Average speed is defined as total distance moved in total interval of time
so it is given as
now here is we show distance by "d" and time by"t"
then we will have mathematical expression as follows
Answer:
Current in the circuit will be 0.024 A
Explanation:
We have given battery voltage v = 6 volt
Resistance R = 220 ohm
Diode potential = 0.7 volt
So voltage across the resistance = 6 - 0.7 = 5.3 volt
Current is given by
So current in the circuit will be 0.024 A