Question

Find the value of 60 watt in a system having 100 gram , 20 cm and 1 minute as physical units.​

Answer 1

Answer:

considering 100g to be one mass unit , 20 cm to be one length unit and i minute to be a time unit

=> 1kg= 1000g =1000/100 units

=>1m=100cm = 100/20 units

=> 1sec = 1/60 min = 1/60 units

then 60 w= 60 kg * 1 m/s^2 * 1m * 1s^-1

( power = work/time

work = force x distance

force = mass x acceleration

.: power = mass x acceleration x distance / time)

60 w = 60 kg x 1 m^2 x 1 s^-3

= [60*1000/100][1 *100/20]^2[ 1*1/60]^-3

=3.24 * 10^9 new units

=3.24 giga new units.