A 55.0 kg physics student is at rest on a 5.00 kg sled that also holds a chunk of ice with a mass of 1.50 kg. The student throws the ice horizontally with a speed of 12.0 m/s relative to the ground. If the sled slides over a frozen pond without friction, how fast (in m/s) are the sled and student traveling after throwing the chunk of ice

it consists of the house of representatives and the senate.

explanation:

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.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr