A 1350 kg mass car traveling at a velocity of 20 m/s crashes into a 2000 kg truck that is stopped at a red light. After the crash, the car moves at backwards at a speed of -7 m/s. Calculate the truck's velocity after the crash

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i just did this and got a 100.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

96.77 amp

explanation:

rl = 250/100 = 2.5 ohms.

egl = 250 + (100 × 0.1) + 2 = 262 v.

at 700 r.p.m., eg2 = 262 × 700/1000 = 183.4 v.

if ia is the new current, then eg2 - 2 - (ia × 0.1) = 2.5 ia

which means this will give ia = 96.77 amp.