1. A 6 kg block is suspended by a single rope. A horizontal force acting on the block keeps the rope at35? relative to the vertical. Find the modulus (a) of the force; (b) tension in the rope.

2. A 5 kg block is suspended from the ceiling of an elevator. Find the modulus of the tension of the string? from the following data:? (a) the elevator is moving upwards at 3m/s and decelerates at the rate of 6m/s²; (b) the elevator moves downward at 4 m/s and accelerates at 3 m/s².

3.