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Say you push on a 5 kg block with a force of Fa = 20 N,...

Say you push on a 5 kg block with a force of Fa = 20 N, at a 45° angle downward. The coefficient of kinetic friction between the block and the ground is ?k = 0.3. The coefficient of static friction is unknown, but it is known that ?s > 0.3. The block is moving with initial velocity to the right (the +x direction), v0 = 2 m/s.

a) What is the magnitude of the force of friction on the box, in Newtons?

b) What is the x component of the box's acceleration, in m/s2?

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