a fast humvee drove from desert a to desert b. for the 12 hours, it travelled at an speed of 185 km/h. for the next 13 hours, it travelled at an average speed of 160 km/h. whats was the average speed of the whole journey?

the diagram which shows forces as either balanced = same speed or unbalanced = accelerarting

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

i'm on my way to history not a mistory.