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Part E: What was the ball's launch angle in degrees?
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- KEY TERMS 1. physics (intro) 2. position (2.1) 3. motion 4. scalar (2.2) 5. vector 6. average speed 7. distance 8. instantaneous speed 9. average velocity 10. displacement 11. instantaneous velocity 12. acceleration (2.3) 13. average acceleration 14. acceleration due to gravity 15. free fall 16. terminal velocity 17. centripetal acceleration (2.4) 18. projectile motion (2.5) For each of the following items, fill in the number of the appropriate Key Term from the preceding list. r. _____ Displacement/travel time(The image shows the complete question) Cardo Dalisay was trapped inside a 2D Cartesian prison. In an attempt tobust out, he has a trajectory described by the following equation: r(t) = (−10.0 [cm/s]t + 3.00 [cm/s2]t2)ˆi + (−6.90 [cm] + 0.950 [cm/s2]t2)ˆj What will Cardo Dalisay’s velocity be 10.00 s after he starts moving?A. 20.0 [cm/s] ˆi + 9.50 [cm/s] ˆjB. 60.0 [cm/s] ˆi + 19.0 [cm/s] ˆjC. 50.0 [cm/s] ˆi + 19.0 [cm/s] ˆjD. 200. [cm/s] ˆi + 101.9 [cm/s] ˆjFormer prince Harry's child is riding on a dangerous, old-fashioned, playground merry-go-round which completes one revolution every 8.36 seconds. The boy is standing 4.65 m from the center of the merry-go-round. What is the magnitude of the centripetal acceleration of the child? a) 3.21 m/s^2 b) 1.78 m/s^2 c) 2.63 m/s^2 d) 2.04 m/s^2 e) 3.97 m/s^2