Chapter 12, Problem 117P

A motorcycle starts from rest at t = 0 and travels along a straight road with a constant acceleration of 6 ft/sec2 until it reaches a speed of 50 ft/s and maintains this speed throughout the duration of the motion. Also, when t = 0, a car located 6000 ft away, travels towards the motorcycle at a constant velocity of 30 ft/s. Determine the time at which the two vehicles pass each other,Calculate the distance traveled by the motorcycle the moment that the two vehicles pass each other, Calculate the distance traveled by the car the moment that the two vehicles pass each other.

The slider P can be moved inward by means of the string S, while the slotted arm rotates about point . The angular position of the arm is given by e = 0.90t - 0.041t², where e is in radians and t is in seconds. The slider is at r = 1.23 m when t=0 and thereafter is drawn inward at the constant rate of 0.10 m/s. Determine the velocity v and acceleration a of the slider when t = 3.5 s. Express your answers in the x-y coordinate system. Answers: At t = 3.5 s, v = (i i+ i j) m/s a = ( i i+ i j) m/s2

3. The motorcycle is traveling at 2 m/s when it is at A. If the speed is then increased at a rate of 0.1 m/s², calculate the speed and acceleration of the motorcycle when t = 5 s. y = 0.5x²

The car starts from rest at s = 0 and increases its speed at at = 4 m/s2. Determine the time when the magnitude of acceleration becomes 20 m/s2. At what position s does this occur.

4. Starting from rest, the motorboat travels around the circular path, p= 50-m, at a speed v = 0.8t m/s, where 't' is in seconds. Determine the magnitudes of the boat's velocity and acceleration when it has p- S0m traveled 20-m.

None

Please help with the attached problem

A motorcyclist at A is traveling at 60 ft/s when he wishes to pass the truck T which is traveling at a constant speed of 60 ft/s. To do so the motorcyclist accelerates at a = 6 ft/s2 until reaching a maximum speed of 85 ft/s. If he then maintains this speed, determine the time needed for him to reach a point located 100 ft in front of the truck. Draw the v-t and s-t graphs for the motorcycle during this time.

The car is traveling at a speed of 57 mi/hr as it approaches point A. Beginning at A, the car decelerates at a constant 6.8 ft/sec2 until it gets to point B, after which its constant rate of decrease of speed is 2.0 ft/sec2 as it rounds the interchange ramp. Determine the magnitude of the total car acceleration (a) just before it gets to B, (b) just after it passes B, and (c) at point C. 182 C B 252' Answers: (a) Just before B, a = i ft/sec2 (b) Just after B, a = i ft/sec2 (c) At C, i ft/sec2 a =