2. A projectile is shot from a launcher at an angle 0,, with an initial velocity magnitude vo, from a point even with a tabletop. The projectile hits an apple atop a child's noggin (see Figure 1). The apple is a height y above the tabletop, and a horizontal distance x from the launcher. Set this up as a formal problem, and solve for x. That is, determine an expression for x in terms of only v₁, 0, y and g. Actually, this is quite a long expression. So, if you want, you can determine an expression for x in terms of v., 0., and time t, and determine another expression for timet (in terms of v., 0.,y and g) that you will solve and then substitute the value of t into the expression for x. Your final equation(s) will be called Equation 3 (and Equation 4).

Draw a phase portrait for an oscillating, damped spring.

A person is running a temperature of 41.0°C. What is the equivalent temperature on the Fahrenheit scale? (Enter your answer to at least three significant figures.)  °F

What is the period of a rock of mass 2.0kg tied to the end of a spring 0.625m long string that hangs in a doorway and has an elastic constant of 40N/m?

Give an example of friction speeding up an object.

Which is the higher temperature? (Assume temperatures to be exact numbers.) (a) 272°C or 272°F? 272°C 272°F     They are the same temperature. (b) 200°C or 368°F? 200°C 368°F    They are the same temperature.

What is the direction of a force vector given by ~v = −6Nˆi − 8Nˆj?

What can be said of the position vector of an object far from any influences on its motion?

་ Consider a ball sliding down a ramp as shown above. The ball is already in motion at the position 1. Which direction best approximates the direction of acceleration vector a when the object is at position 2?