An electron is projected out along the + x axis with initial speed of 3*10^6 m/s. it goes 45cm and stops due to a uniform electric field in the region. the magnitude of the field (in v/m) is: a) 114 b) 57 c) 28.5 d) 14.25

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b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.

the correct answer is "inertia"