Two children who are bored while waiting for their flight at the airport decide to race from one end of the 20-m-long moving sidewalk to the other and back. phillippe runs on the sidewalk at 2.0 m/s (relative to the sidewalk). renee runs on the floor at 2.0 m/s. the sidewalk moves at 1.5 m/s relative to the floor. both make the turn instantly with no loss of speed. a. who wins the race

Renee will win the race

Explanation:

Total time of motion for Phillippe is given as

now we have

now for Renee we have

so here we can see that

so Renee will win the race

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.