Answer:
Explanation:
Ans:1
So
Distance travels by Disha (d) = 1.5m
Force applied by Disha is opposite but equal to force done by gravitational force so force by disha is
F = (-)mg where m is mass of luggage
And angle b/w d and F is 90 degree
So
Nothing
W = Fdcos(x)
So
W = mg x 1.5 x cos(90)
W = mg x 1.5 x 0
W = 0J
So work done by Disha is 0J or we can say nothing done by her.