Physics, 26.07.2019 04:20 jaymoney0531

Two cyclists leave towns 120 km apart at the same time and travel toward each other. one cyclist travels 10 km/h slower than the other. if they meet in 2 hours, what is the rate of each cyclist?

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Answer from: reesemf2006

Exp35 km/h , 25 km/hlanation:

Let the speed of one cyclist is v and the speed of another cyclist is v - 10.

Distance traveled by the first cyclist in 2 hours = v x 2

Distance traveled by the second cyclist in 2 hours = (v - 10) x 2

They meet after 2 hours.

So the distance traveled by the first and the second cyclist is equal to 120 km.

2 v + 2 (v -10) = 120

2v + 2v - 20 = 120

4v = 140

v = 35 km/h

The speed of first cyclist is 35 km/h and the speed of another cyclist is 35 - 10 = 25 km/h.

Answer from: lizatapper5054

35 km/hr and 25 km/hr

Explanation:

Total distance is D.

Let speed of one cyclist be X km/hr.

Speed of second cyclist = ( X-10) km/hr

Now,

Distance = Speed * Time

Total distance D = Distance covered by slower cyclist + Distance covered by faster cyclist.

D = 2* X + 2(X-10)

120 = 2X + 2X -20

120 = 4X - 20

140 = 4X

X = 35 km/hr

Therefore, Speed of faster cyclist = 35 km/hr

Speed of slower cyclist = 35-10

= 25km/hr

Answer from: Quest

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

Answer from: Quest

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

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Two cyclists leave towns 120 km apart at the same time and travel toward each other. one cyclist tra...

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