Answer:a woman with a load on
her head and stationary
Explanation:
a woman with a load on her head and stationary.since distance is not covered work is not done
Answer: The correct answer is A.
Explanation:
In magnets, there are two poles: South and north poles. Like poles repel each other. Unlike poles attract each other.
When two magnets of the opposite poles are brought together then the poles are attract each other.
When two magnets of the same poles are brought together then the poles are repel each other.
Therefore, the correct answer is A.
Technically all 3 of those would be correct answers. But applying the brakes would probably be the correct answer if all of the above isn't a answer.
Answer:
Explanation:
a. Angular velocity,
is defined as the rate of change of position of a rotating body with respect to time. so omega,= theta/time and theta =the position angle.
-Angular velocity of the merry-go-round can thus be calculated and expressed as:
b. From a above, we know that our angular velocity is 
,we can substitute 
to find our initial velocity.
Hence the value of angular velocity at t=0 is 0.350rad/s
c. To calculate the instantaneous angular velocity at t=5.00s, we
Therefore, the instanteneous angular velocity is 1.25rad/s
d. The average angular velocity between t=0 and 2=5s is calculated as
-At t=0,
-At time t=5s, 
Therefore, the average angular velocity is calculated as
Hence the average angular velocity is 0.7rad/s
#instantenous angular velocity does not increase linearly .
