distance = rate * time
time= distance / rate
Time for first leg = 15 miles / 40 miles/hr = 0.375 hr
Time for second leg = 15 miles / 10 miles/hr = 1.5 hr
Total time for trip = 1.875 hr
rate=distance/time
Average rate = (15+15)/1.875 = 30/1.875 = 16mph!
10mph wind speed is equal to 8.69 knots, or 16.1 km/h
you pop a clutch typically when you have a standard transmission and you have a dead battery or bad starter.. this is done by pulling, pushing or rolling down a encline the dead vehicle with the key in the on position and in 3rd gear on trucks hold clutch in until momentum gets you rolling about 10pmh then release cluth pedal, this will allow the engine to engage the flywheel and fire up the engine like the starter would in normal situation..., keep in mind you need to have enough momentum for this to work well.