Inbox PHYS&110 8430 - 1 X Getting Started wit X "A Ch. 1.3-4 HW (110) x Topic: Discussion P x () Cultural Identity In X thank you Mccaffrix (56 unread) - azaril X Instagram *Course Hero X C webassign.net/web/Student/Assignment-Responses/last?dep=27912296 ABP A roller coaster in the figure below starts at the top of a straight track that is inclined 300 with the horizontal. This causes it to accelerate at a rate of 4.9 m/s2 (1/2 g). a = 78 30 (a) What is the roller coaster's speed after 3 s? m/s b) How far does it travel during that time? m Need Help? Read it Watch it 5. [-/4 Points] DETAILS OBINPHYS8 1.Q.023. MY NOTES ASK YOUR TEACHER If a ball is thrown straight up into the air, what is its acceleration as it moves upward? magnitude m/s2 direction ---Select--. v What is its acceleration when it reaches its highest point and is stopped at an instant? magnitude m/s 2 direction [---Select--. V Need Help? Read it 6. [-/5 Points] DETAILS OBINPHYS8 1.P.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A rock is dropped off the side of a bridge and hits the water below 8.1 s later. (a) What was the rock's velocity when it hit the water? speed m/s direction ---Select--. V (b) What was the rock's average velocity as it fell? speed m/s direction -.-Select-.. V (c) What is the height of the bridge above the water? Need Help? Read it Type here to search O a 20 50'F Partly sunny ~ C Ed ( () ( 10/12/2021 4:58 PMInbox PHYS&110 8430 - X ()Getting Started wit > A Ch. 1.3-4 HW (110) x Topic: Discussion P X () Cultural Identity In X thank you Mccaffrunread) - azaril X Instagram *Course Hero X C webassign.net/web/Student/Assignment-Responses/last?dep=27912296 ABP # Four arrows, all with the same shape and size, are shot directly upward. Ignore the effect of air resistance, but the arrows have different masses and are fired with different speeds. Rank them from highest to lowest in terms of the greatest height that they will reach. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.) A. mass = 0.0500 kg, Vinitial = 13.0 m/s B. mass = 0.0750 kg, Vinitial = 11.0 m/s C. mass = 0.100 kg, Vinitial = 15.0 m/s D. mass = 0.125 kg. Vinitial = 17.0 m/s Need Help? Read It 8. [-/9 Points] DETAILS OBINPHYS8 1.P.016. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The graph below shows the distance versus time for an elevator as it moves up and down in a building. Compute the elevator's velocity at the times marked a, b, and c. (Assume the distance is measured from ground level and the positive direction is upward.) d(m) 36 32 28 24 20 16 12 8- b 8 12 16 20 24 28 32 + t (s ) Time a Estimate the rise and run. rise m run Compute the elevator's velocity at time a. (Use your estimates. Indicate the direction with the sign of your answer.) m/s Time b Estimate the rise and run rise Jm run Compute the elevator's velocity at time b. (Use your estimates. Indicate the direction with the sign of your answer.) m/ Time c Estimate the rise and run. rise m run Compute the elevator's velocity at time c. (Use your estimates. Indicate the direction with the sign of your answer.) m/s Need Help? Read it O a 4:58 PM Type here to search 20 50'F Partly sunny ~ C Ed ( 4) ( 10/12/2021 23