1. A figure skater glides along a circular path of radius 5.28m.
(a) If she coasts around one half of the circle, find the magnitude of the displacement vector. (SI unit: m)
(b) If she coasts around one half of the circle, find what distance she skated. (SI unit: m)
(c) What is the magnitude of the displacement if she skates all the way around the circle? (SI unit:m)
2. A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d1=3.98m to the north, d2=2.10m northeast, and d3= 1.14m at 30.0 degree west of south (see the figure below). Starting at the same initial point, an expert golfer could make the hole in what single displacement?
(a) magnitude (m)
(b) direction ____________________degree north of east
3. A ball is thrown upward from the top of a building at an angle of 30 degree to the horizontal and with an initial speed of 18.0 m/s. The point of release is h=47.0m above the ground.
(a) how long does it take for the ball to hit the ground? (s)
(b) find the ball's speed at impact. (m/s)
(c) find the horizontal range of the ball. (m)
4. Suppose the ball is thrown from the same height as in the PRACTICE IT problem at an angle of 25 degree below the horizontal. If it strikes the ground 60.4 m away, find the following
(a) the time of flight (s)
(b) the initial speed (m/s)
(c) the speed and angle of the velocity vector with respect to the horizontal at impact
(a) the time of flight (s)
(b) the initial speed (m/s)
(c) the speed and angle of the velocity vector with respect to the horizontal at impact
- speed (m/s)
- angle (degree below the horizontal)
5.
1. A figure skater glides along a circular path of radius 5.28m. (a) If she coasts...
A figure skater glides along a circular path of radius 5.10 m. If she coasts around one half of the circle, find the following. (a)her distance (in m) from the starting location (b)the length (in m) of the path she skated
A figure skater glides along a circular path of radius 4.00 m. If she coasts around one half of the circle, find the following. 1. her distance __m 2. her length ___m
18. (-/2.5 Points] DETAILS SERCP11 1.10.P.064. A figure skater glides along a circular path of radius 5.10 m. If she coasts around one half of the circle, find the following. HINT (a) her distance in m) from the starting location m (b) the length (in m) of the path she skated m Need Help? Read it Watch it
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 19.0 m/s. The point of release is h = 46.0 m above the ground. (a) How long does it take for the ball to hit the ground? 4.183 (b) Find the ball's speed at impact. 35.532 m/s (c) Find the horizontal range...
PRACTICE IT Use the worked example above to help you solve this problenm A ball is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with an initial speed of 22.0 m/s. The point of release is h 41.0 m above the ground (a) How long does it take for the ball to hit the ground? 3.103 Your response differs from the correct answer by more than 10%. Double check your calculations....
Suppose the ball is thrown from the height h = 43.0 m at an angle of 34.0° below the horizontal. If it strikes the ground 41.8 m away, find the following. (Hint: For part (a), use the equation for the x displacement to eliminate v0t from the equation for the y displacement.) (a) the time of flight (b) the initial speed m/s (c) the speed and angle of the velocity vector with respect to the horizontal at impact speed m/s...
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 19.0 m/s. The point of release is h 46.0 m above the ground. (a) How long does it take for the ball to hit the ground? 4.18 b) Find the ball's speed at impact 35.5 m/s (c) Find the horizontal range of...
Suppose the ball is thrown from the same height as in the PRACTICE IT problem at an angle of 31.0°below the horizontal. If it strikes the ground 44.0 m away, find the following. (Hint: For part (a), use the equation for the x-displacement to eliminate v0t from the equation for the y-displacement.) (a) the time of flight = 1.82s (b) the initial speed = 28.21 m/s (c) the speed and angle of the velocity vector with respect to the horizontal...
Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.0° to the hortzontal and with an Initilal speed of 19.0 m/s. The point of release is PRACTICE IT 49.0 m above the ground. (a) How long does it take for the ball to hit the ground? (b) Find the ball's speed at impact. m/s (e) Find the horizontal range of the ball. EXERCISE...
PROBLEM: A ball is thrown downward from the top of a building at an angle of 30.0° below the horizontal. The point of release is 49.0 m above the ground and the ball lands 67.7 m from the base of the building. (a) How long does it take for the ball to hit the ground? (b) Find the ball's initial speed. (c) the speed and angle of the velocity vector with respect to the horizontal at impact. Neglect air resistance.