Chapter 2, Problem 78EAP

In Problems 76 through 79, you are given the kinematic equation or equations that are used to solve a problem. For each of these, you are to:

a. Write a realistic problem for which this is the correct equation(s). Be sure that the answer your problem requests is consistent with the equation(s) given.

b. Draw the pictorial representation for your problem.

c. Finish the solution of the problem.

76. 64mOm + (32mIs)(4s - Os) + $\frac{1}{2}{a}_x$ (4s - Os)2

77. (10 m/s)2 = $v_{0y}^2$ - 2 (9.8 m/s²)(10 m - 0 m)

78. (0 m/s)2 = (5 m/s)2 — 2(9.8 m/s²)(sin 10°)(x₁- 0 m)

79. $v_{1x}$ =0 m/s + (20 m/s²)(5 s − 0 s)

x₁= 0 m + (0 m/s)(5 s − 0s) + $\frac{1}{2}$ (20 m/s²)(5 s − 0 s)2

x₂ = x₁ + v_1x(10 s − 5 s)