first: correct
second: correct
third: correct
The horizontal displacement is how far he jumped. The actual width of the Gorge has to come from other information.
George has calculated that he can jump the gorge if the ramp is inclined to 45 degrees, and he attains a speed of 20 m/s. Will George make it? If not, how far short of the other side is he when he drops below the level of the ground?
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What I did so far:
- I found the velocity in the horizontal and vertical direction which were both 14.14 m/s.
- I found time, using d = vit + 1/2at^2 and I got t=2.94 s.
- I put the time into the equation for horizontal displacement and I got (14.14)(2.94) = 41.6 m.
- I probably did something wrong. =/ Anyway, I've found (or tried to find) the distance of the gorge, but how do I find the distance of the jump &/or solve the rest of the problem?
1 answer