How Do Physics Formulas Apply to Airplane Acceleration and Projectile Motion?

AI Thread Summary
To calculate airplane acceleration, use the formula a = (v^2 - u^2) / (2s), where v is the final velocity, u is the initial velocity, and s is the distance. For projectile motion, the horizontal distance traveled can be found using the formula d = v * t, where v is the horizontal velocity and t is the time of fall, which can be determined from the height using the formula t = √(2h/g). For the boat's resultant speed and direction, apply vector addition to combine the boat's speed and the current's speed, using the Pythagorean theorem to find the resultant speed and trigonometry to determine the direction. Understanding these formulas will help solve the posed questions effectively. Mastery of these concepts is essential for applying physics to real-world scenarios like airplane acceleration and projectile motion.
shortie
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i have a few questions
1) an airplane is traveling at 140 km/h when it touches down. if it comes to a stop 1250m later what is the acceleration in m/s^2?
2)a bridge is 176.4 m above a river. if a fishing line is thrown from a bridge with a horizontal velocity of 22.0 m/s. how far will it have traveled when it hits the water?
and finally a boat is capable of moving 15.0m/s relative to the water. the captain sets a traveling dur north unaware that there is a current flowing from the east at 4.5 m/s. what is the resulatn speed and direction of the boat?

i don't need the answers i just need to know how to get them like the formulas n stuff
thx
 
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Have you tried at all?

Do you have formulas like v(t)= v0+ at or
s(t)= (1/2)at2+ v0t+ x0?
 
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