Bob has just finished climbing a sheer cliff above a beach and wants to figure out how high he climbed. All he has to use,however, is a baseball, a stopwatch, and a friend on the ground with a long measuring tape. Bob is a pitcher, and knows that thefastest he can throw the ball is vo= 81.0 mph. Bob starts the stopwatch as he throws the ball (with no way to measure the ball'sinitial trajectory) and watches carefully. The ball rises and then falls, and after t₁ = 0.910 s, the ball is once again level withBob. Bob cannot see well enough to time when the ball hits the ground. Bob's friend then measures that the ball landed adistance of x = 442 ft from the base of the cliff. How high up is Bob if the ball started from exactly 5 ft above the edge ofthe cliff?5 ft1₁height of the cliff:ft

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Answered: -Bob has just finished climbing a sheer…

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< Question 9 of 20 Bob has just finished climbing a sheer cliff above a beach and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground with a long measuring tape. Bob is a pitcher, and knows that the fastest he can throw the ball is to = 91.0 mph. Bob starts the stopwatch as he throws the ball (with no way to measure the ball's initial trajectory) and watches carefully. The ball rises and then falls, and after f₁ = 0.910 s, the ball is once again level with Bob. Bob cannot see well enough to time when the ball hits the ground. Bob's friend then measures that the ball landed a distance of x = 332 ft from the base of the cliff. How high up is Bob if the ball started from exactly 5 ft above the edge of the cliff? height of the cliff: 5 fi TOOLS x10
3. The graph below shows the displacement vs time of a student leaving the NSCI 110 after physics class walking towards the cafeteria for lunch (assume a 1-D motion) At some point between NSCI 110 and the cafeteria, the student realizes they have left their cell phone in the classroom, so they turn back to get it. Displacement vs Time 120 100 nol Velocity vs Time 80 1.5 60 40 30 60 90 120 150 180 210 20 -1.5 30 60 90 120 150 180 210 Time (s) a. How far did the student walk before realizing that they left their cell phone in the classroom? How long did this take? (2 marks) b. With what velocity did the student walk back to the classroom? (2 marks) c. Fill out the velocity vs time graph above. (2 marks) Distance (m)
Nilo
Can I please get some help with this problem. I can't seem to figure this out. thank you!
What is the discrepancy of v1 and v2 v1=688.8 V2= 613.99

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