Large birds like pheasants often walk short distances. Small birds like chickadees never walk. They either hop or fly. Why might this be?

A car drives up a steep 10° slope at a constant speed of 15 m/s. After 10 s, how much height has the car gained?

A ball is throw hoard from the ground with  initial velocity vi= 14 m/s and reaches height of h above the ground before falling back down. Take the upwards direction to be positive. Neglect air resistance. (C) Enter  an expression for the maximum height, h, the ball reaches in terms of vf, vi, and a. (D) Calculate the value of h, in meters. (E) Enter an expression for the time it takes for the ball to trace from the ground to the top, delta t, in terms of vi, vf, and a.

QUADRATIC EQUATIONS: A bungee jumper is jumping off a bridge 25 m high that goes over a river. The quadratic equation h = 3t^2 − 18t + 25 can be used to model the path of the bungee jumper, where h is the height in metres above the water and t is the time in seconds. Determine if the jumper will hit the water before rebounding up into the air. (*please type answer*)

While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 7.00 m/s. The stone subsequently falls to the ground, which is 14 m below the point where the stone leaves his hand. At what speed does the stone impact the ground? Ignore air resistance and use g = 9.81 m/s for the acceleration due to gravity. (See the diagram below.) Vyi = = 7.00 m/s- Stone. 14.0 m Vyf a. 15 m/s b. 12 m/s c. 21 m/s d. 24 m/s e. 18 m/s

20

An object of mass 5.9 kg moves along a flat surface and then up an incline with a steepness of 7.8°. If the object is moving with a speed of 12.6 m-s¹ along the flat surface, how fast is it moving (in m-s¹) after it has travelled 2.2 m along the incline? Assume that the incline is frictionless, and ignore air resistance.

What is the maximum speed that the skater can reach if she goes all the way down to ground level?

A puck in a shuffleboard game slides a total of 12 m before coming to rest.  It kinetic coefficient between the puck and shuffleboard is 0.10.  How does one determine the puck’s initial speed in m/s?

(a) Calculate the speed of the object when it is at x=2m (b) Does the object reach x=3m ?____ Yes ____ No (c) Is the force acting on the object positive, negative, or zero between x=1m and x=2m ? _____ Positive _____ Negative _____ Zero (d) Calculate the acceleration of the object when it is at x=1.5m. (e) On the graph above, draw a dot at the position where the maximum negative force is exerted on theobject.Provide your reasoning. (f) When the object passes the origin, it is moving in the -direction with a kinetic energy of 20 .Will the object ever return to the origin?____ Yes ____ NoProvide your reasoning.