Ony is 12 of a mile ahead of laura on a jogging path. if tony is running at 5 miles per hour, and laura is running at 7 miles per hour, how long will it take laura to catch up with tony?

Laura will take hour or 15 minutes to catch up with Tony.

Explanation

Distance between Tony and Laura is miles and the difference of their speeds = (7 - 5 ) mph = 2 mph

For catching up with Tony, Laura needs to travel that miles with the speed of 2 mph

As, Distance = speed × time

So,   = 2 × t

⇒ t = hour = × 60 minutes = 15 minutes

That means, Laura will take hour or 15 minutes to catch up with Tony.

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

whatare you sayig

step-by-step explanation: