Q1. An airplane is heading due south at the speed of 475 km/h. A wind begins blowing from the southwest at the speed of 100 km/h (average).

What is the velocity (magnitude and direction) of the plane relative to ground?

Q2. Small block 1 with mass m = 8.26 kg sits on top of large block 2 of mass M = 35.7 kg, and the pair sit on a frictionless, horizontal table. Between blocks: coefficient of kinetic friction is μk = 0.221, and coefficient of static friction is μs = 0.488.

NOTE: This is comparable to a problem we did in lecture, except this time force F is applied horizontally to the upper block.

a) Find the magnitude of the maximum force applied horizontally to upper block (block 1) that will cause the two blocks to slide together.

b) Now, suppose the force applied to block 1 has magnitude F = 165.10 N, that is greater than the minimum force found in part

Find out the magnitude of the acceleration of each block.

Magnitude of the acceleration of block 1 (top block): (m/s2)

magnitude of the acceleration of block 2 (bottom block): (m/s2)

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