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Question1

The force vector A has a magnitude of 91.0 Newton’s and points due east. The force vector B has magnitude of 134 Newton’s and points 78° north of east. Utilize the graphical method and find out the magnitude and direction of following forces.

(a) Vector Fa − Vector Fb (give the direction with respect to due east)

(b) Vector Fb − Vector Fa (give the direction with respect to due west).

Question2

The final shear strength of steel is taken to be 2.80 109 Pa, what force is necessary to punch through a steel plate 1.60 cm thick? Suppose the superhero's fist has cross-sectional area of 9.00 101 cm2 and is approximately circular.

Question3

Two soccer players start from rest, 37 meters apart. They run directly towards each other and both players are accelerating. The first player has the acceleration whose magnitude is 0.15 m/s^2 and second player's has the acceleration of 0.43 m/s^2. How much time passes by they collide?

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