simple physics problems help?

Question

theses are simple physics problems that i can't figure out because i'm dumb at this! help please!A gannet is a seabird that fishes by diving from a great height. If a gannet hits the water at 32m/s , what height did it dive from? Assume that the gannet was motionless before starting its dive.A football is kicked straight up into the air; it hits the ground 4.6s later. What was the greatest height reached by the ball? Assume it is kicked from ground level.A Thomson's gazelle can run at very high speeds, but its acceleration is relatively modest. A reasonable model for the sprint of a gazelle assumes an acceleration of 4.2m/s2 for 6.5s , after which the gazelle continues at a steady speed. A human would win a very short race with a gazelle. The best time for a 30 m sprint for a human runner is 3.6 s. How much time would the gazelle take for a 30 m race? Thank you and please explain as much as you can! I'm not trying to get you to do my homework, i already did about 17 problems so don/t worry! ð

Lavinia Carroll · Accepted Answer

1. with all kinematic problems, you want to label your known variables(delta)x= ?a= -9.8 m/s^2 u= 0 m/sv= 32 m/st= ?use v^2= u^2 + 2a(delta)x32^2= 0 + 2(-9.8)(delta x)delta x = -52 m ------> height is 52 msorry, i am not sure about 2 and 3- im learning all this at the moment as well

Lavinia Carroll · Answer

Gannet Sea Bird

Alize Kuhn

simple physics problems help?

2 Answers

AI-Powered Insights

Want to answer this question?

Categories

Tags

Related Questions