1. The two weights are released from rest. How far does the 50 N weight fall in one-half second?

2. In example 3.2, what is the ratio of the tension in the cable to the weight of crate B after the crates are released from rest?

Example 3.2

The two crate, in Figure 3.4 are released from rest. Their masses are rnA = 40 kg a.nd mB = 30 kg, and ';the coefficients of friction between crate A and the inclined surface are 1i'8 = 0.2, ~lk :::: 0.15. What is their acceleration?

3. Each box weighs 200 N and friction can be neglected. If the box  start from rest at t :::::::: O. determine the magnitude of their velocity and the distance they have moved from their initial position at t ::::::: 1 s.