When jumping, a flea accelerates at an astounding 000 m/s2, but over only the very short distance of 0.70 mm. If a flea jumps straight up, and if air resistance is neglected (a rather poor approximation in this situation), how high does the flea go? Express your answer with the appropriate units. ▸ View Available Hint(s)

Question 8 An object is moving with constant non-zero acceleration along the +x-axis. Describe the shape of the graph of the velocity in the x direction as a function of time for this object. O a horizontal straight line. O a vertical straight line. none of the given choices O a parabolic curve. a straight line making an angle with the time axis.

PAGE 82. Savannah Dread HOMEWORK CHAPTER 3 t= d= 9 Water pistol horizontally aimed. The speed stream is v, = 5.00 m/s. a) How far has stream dropped at 1.00 m out? b) At what distance out will it have dropped 1.0 cm (= .010 m)? Ans. a. -1.96 x 10¹ m (- 19.6 cm), b. 2.26 x 10¹ m (22.6 cm) d

A student fires a cannonball vertically upwards with a speed of 31.0m/s. Determine all unknowns and answer the following questions. Neglect drag and the initial height and horizontal motion of the cannonball. What was the cannonball's maximum height? unit How long did the cannonball rise? unit What was the cannonball's total flight time? unit

-b+√b²-4ac 2a x = xo + vot + ½ât², v = vô + āt, v² = v² + 2ảAx, t = ² Problem 1: A ball is thrown straight up from the ground. The ball reaches a maximum height of 5 m. For simplicity, use g = 10 m/sec². a) What is the initial speed of the ball? Answer: 10 m/sec b) What is the time it takes the ball to reach the maximum height of 5 m? Answer: 1 sec c) What is the time it takes the ball to hit the ground? Answer: 2 sec d) At what times is the ball at a height of 3 m above the ground? Answer: 0.37 sec and 1.63 sec e) What is the velocity of the ball when it is at a height of 3 m above the ground? Answer: +6.3 m/sec or -6.3 m/sec.

A certain freely falling object, released from rest, requires 1.55 s to travel the last 22.0 m before it hits the ground. (a) Find the velocity of the object when it is 22.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) m/s(b) Find the total distance the object travels during the fall. m

A car traveling 95 km/h slows down at a constant 0.50 m/s² just by "letting up on the gas." ▾ Part A Calculate the distance the car coasts before it stops. Express your answer using two significant figures. IVE ΑΣΦ £—20 = Submit Request Answer Part B Calculate the time it takes to stop. Express your answer using two significant figures. tstop= | ΑΣΦ ? ? S m