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jadearismendi
what is the magnitude of the force necessary to accelerate a 20.0 kg mass from rest to 0.500 m/s in a time of 2.0s
First find a using v=u+at Here v-final velocity(in this case 0.500m/s) u-initial velocity(in this case 0m/s) t-time taken(in this case 2.0s) a-acceleration Then find the magnitude of the force using F=ma m-mass a-acceleration
a=v/t. so .5/2 = 1. f=m*a so f=(20)*(1) = 20 N
v=u+at v/t = a a = 0.5/2 = 1/4m/s^2 f=ma = 20*1/4 = 5N