Physics, asked by farzeenali4539, 1 year ago

Robert is travelling on his cycle and has calculated to reach point a at 2 p.m. if it travels at 10 km per hour he will reach there at 12 noon if it travels at 15 km per hour at what speed must he travel to reach at 1 p.m.

Answers

Answered by rayala1
0
let us consider the present time is t and the distance is s
lets consider x to be the time taken to reach
case 1
speed=10km/h
t+x=2pm x=s/10
case 2
speed 15km/h
t+x1=12 and x=s/15
equnation 1-equation 2
x-x1=2hrs
so s=60km
so the body starts travelling at 8:00AM
so the speed at which he need to travel to cover 60km in 5hrs is 60/5
which is 12km/h




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