Several people stand on a bridge over a river.  The bridge is not level, so the people are all different heights above the river.  Each person throws a stone to the river. a) The first person is 26.8 m above the river and throws her stone with a speed of 16.6 m/s at an angle of 6 degrees to the horizontal (positive degrees are above horizontal, negative degrees are below).  How long does it take her stone to hit the water, in seconds? b) The second person is 19.0 m above the river and throws his stone with a speed of 17.1 m/s at an angle of -21.4 degrees to the horizontal (positive degrees are above horizontal, negative degrees are below).  What is the range of his stone, in meters? c)The third person is 9.1 m above the river and throws their stone with a speed of 6.5 m/s at an angle of 9.3 degrees to the horizontal (positive degrees are above horizontal, negative degrees are below).  What is the speed of this stone (in m/s) just before it strikes the river?

A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp, measured from the horizontal, at a speed of 40.0 m/s (144 km/h). The top of the ramp is at the same height as the roofs of the buses and each bus is 20.0 m long. How many buses can he clear? n = By how many meters does he clear the last bus? d =

In the Olympic shot-put event, an athlete throws the shot with an initial speed of 12 m/s at an angle of 40 degrees above the horizontal. The shot leaves her hand at a height of 1.40 m above the ground. Find R, the shot traveled horizontally? Find the time it takes to reach the ground. With what velocity (magnitude and direction) it hits the ground? Find H, the maximum height it goes to from the point.

Chapter 04, Concept Question 04 You are to launch a rocket, from just above the ground, with one of the following initial velocity vectors: (1) w = 201 + 70j, (2) w = -20i + 70j. (3) w = 20i – 70j . (4) w = -20i – 70j. In your coordinate system, x runs along level ground and y increases upward. In the following questions, you will need to rank these vectors. If multiple vectors rank equally, use the same rank for esch, then exclude the intermediste ranking (i.e. if objects A, B, and C must be ranked, and A and B must both be ranked first, the ranking would be A:1, B:1, C:3). If all vectors rank equally, rank esch as '1" LINK TO TEXT Rank the vectors according to the launch speed of the projectile, greatest first. Vector 1.. V Vector 2 Vector 3 |-- v Vector 4 -- v 1. Greatest launch speed 2. Second greatest launch speed 3. Third greatest launch speed 4. Fourth greatest launch speed Rank the vectors according to the time of flight of the projectile, greatest first. Vector 1.- v Vector 2…

Во Font Arial Bold B 2. In a basketball game, a player shoots the ball at a velocity of 4.31 m/s at 17.30 above the horizontal. A player on the other team jumps up and blocks the ball at the maximum height. A) Character How far horizontally does the ball travel to where it is blocked? B) How long is the ball in the air before being blocked C) If the ball wasn't blocked, what is the magnitude and direction of the velocity when the ball returns to the launch height? Explain' Alignment 73 Pictorial Representation am eee • Spacing 7 (31 hapt > Bullets & Lists +1 (31 / Did Mathematical Representation 22 Aa MacBook Pro F2 F3 DD F4 F5 F7 F8 F9 F10 F11 24 % & 4 7 8 E R U P ト 3.

A)  With what speed, in meters per second, does the stone strike the ground? vf=

Having trouble figuring this one out: A playful cat sees a mouse run past him with a constant velocity of 2 m/s. One second after the mouse passes the cat, the cat jumps after the mouse at an angle of 30 degrees and some unknown initial velocity. Being a naturally-talented cat, he lands perfectly right where the mouse ends up (the mouse didn't think to turn or change his speed). What is the initial velocity of the cat?

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 3.36 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the window, as the drawing shows. How fast is the train moving? Number i Units HOM 25

A ball is shot from ground level over level ground at a certain initial speed. The figure gives the range R of the ball versus its launch angle 00. R a In the following questions, you will be ranking various points on the path. If multiple points rank equally, use the same rank for each, then exclude the intermediate ranking (i.e. if objects A, B, and C must be ranked, and A and B must both be ranked first, the ranking would be A:1, B:1, C:3). If all points rank equally, rank each as '1'. LINK TO TEXT Rank the three lettered points on the plot according to the total flight time of the ball, greatest first. a Point a Point b Point c

Sheena can row a boat at 3.20 mi/h in still water. She needs to cross a river that is 1.20 mi wide with a current flowing at 1.80 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head upstream at an angle of 25.0° from the direction straight across the river. a.)What is her speed with respect to the starting point on the bank? b.)How long does it take her to cross the river?