An electron of mass 9.11 x 10-31 kg has an initial speed of 3.40 x 105 m/s. it travels in a straight line, and its speed increases to 6.60 x 105 m/s in a distance of 5.80 cm. assume its acceleration is constant.
(a) determine the magnitude of the force exerted on the electron.(n)
(b) compare this force (f) with the weight of the electron (fg), which we ignored.
f/fg= ?

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.