Physics help pleaseeee!? the olympic record for the marathon is 2.00 h, 9.00 min., 21.0 s,. if the average speed of a runner acheiving this record is 5.436 m/s, what is the marathon distance? a) 15,878 km b) 7,761 km c) 42.2 km d) 26.2 km a child is pushing a shopping cart at the speed of 1.5 m/s. how long will it take this child to push this cart down an aisle with a length of 9.3 m? a)1.6 s b)13.9 s c)62 s d)6.2 s Two students walk in the same direction along a straight path at a constant speed. One walks at a speed of 0.90 m/s and the other at a speed of 1.9 m/s. Assuming the

Question

Physics help pleaseeee!?  the olympic record for the marathon is 2.00 h, 9.00 min., 21.0 s,. if the average speed of a runner acheiving this record is 5.436 m/s, what is the marathon distance?   a) 15,878 km  b) 7,761 km  c) 42.2 km  d) 26.2 km   a child is pushing a shopping cart at the speed of 1.5 m/s. how long will it take this child to push this cart down an aisle with a length of 9.3 m?   a)1.6 s  b)13.9 s  c)62 s  d)6.2 s   Two students walk in the same direction along a straight path at a constant speed. One walks at a speed of 0.90 m/s and the other at a speed of 1.9 m/s. Assuming the

anonymous · Answer

#1 convert the time to seconds, then multiply by the average speed, getting lots of meters, then divide by 1000 to get km.

#2 time = distance/speed

#3 missing info