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natasha.aries
 3 years ago
6. A 150 kg motorcycle falls off a bridge and drops straight down into the water. The motorcycle is moving at 12.5 m/s when it hits the water. If the motorcycle comes to rest 7.00 m beneath the surface, determine the average force exerted by the water.
A 1050 N
B 1670 N
C 1880 N
D 3350 N
natasha.aries
 3 years ago
6. A 150 kg motorcycle falls off a bridge and drops straight down into the water. The motorcycle is moving at 12.5 m/s when it hits the water. If the motorcycle comes to rest 7.00 m beneath the surface, determine the average force exerted by the water. A 1050 N B 1670 N C 1880 N D 3350 N

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cesckay
 3 years ago
Best ResponseYou've already chosen the best response.1find accelerations using kinematics... then use F=ma

cesckay
 3 years ago
Best ResponseYou've already chosen the best response.1v2= u2 + 2as to find a then use f=ma

cesckay
 3 years ago
Best ResponseYou've already chosen the best response.1u= initial velocity v= final velocity

natasha.aries
 3 years ago
Best ResponseYou've already chosen the best response.0okay thanks! i have a few more ?s but ill be back in 30mins its ok if u go to sleep! thanks for all ur help! one last question though whats the formula for thermal energY?

cesckay
 3 years ago
Best ResponseYou've already chosen the best response.1i will be around here. revising... its just 10pm here.. for the energy question, relative to that question, Potential energy( delta E) = kinetic energy (work done) + thermal energy (Q)
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