Acow and a bird both travelled from point a to point b . the cow travelled along the straight line but the bird travelled along the curved path as shown below 1)what is the distance travelled by the cow. 2)what is the distance travelled by the bird. 3)which one of them has more displacement.

the diagram which shows forces as either balanced = same speed or unbalanced = accelerarting

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.