Answer all five and show all work please. Chintu and Raven build a rocket, which

Question

Answer all five and show all work please. Chintu and Raven build a rocket, which moves from the earth to about 86m into the sky. It takes 3.7 seconds to reach the rocket's highest point. What is his speed of the rocket's ascent? 28. Lillian has had enough of Tiffany's antics and high jinks and walks over to Tiffany's table. With an initial speed of 2 m/s, Lillian accelerates at a rate of 18 m/s/s for 1.5 seconds, what is her final speed? 29. Mrs. Nelson watches Connor Ladone on the basketball court. Connor dribbles the ball from one end of the court to the other. With an initial speed of 0 m/s and final speed of 14 m/s, he accelerates at a rate of 2 m/s/s. How long does it take Connor to get from one end of the court to the other? 30. Jerusha and Anavi are working very hard to tend their organic veggie garden when Jerusha sees a bunny nibbling on a tender lettuce leaf. In a fit of rage, Anavi chases the fluffy little rabbit across the yard. The bunny darts from rest to 16km/hr in 3 seconds. What is the innocent little bunny's average acceleration? 31. Adam and his family pile into the car to drive to El Paso, about 1,648 km away from Corpus Christi. They head west at a rate of 68.4 km/hour and drive for about 12 hours each day. It takes the Glazzon family about two days to travel. What can you calculate with the information provided?

Explanation / Answer

1. H = u*t - .5 x g x t^2

t = 3.7 sec, H = 86 m

u = 41.37 m/sec

2. Final speed, v = u + a x t = 2 + 18 x 1.5 = 29 m/sec

3. v = u + a*t

14 = 2*t , u = 0

t = 7 sec

4. 16 Km/hour = 4.44 m/sec

a = v/t = 4.44 / 3 = 1.48 m/sec^2

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