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A speedboat moving at 30.0m/s approaches a no-wake buoy marker 100 m ahead. The pilot slowsthe boat with a constant acceleration of -3.50m/s2 by reducing the throttle.
(a) How long does it take the boat to reach the buoy?
(b) What is the velocity of the boat when it reaches the buoy?
A 0.75 kg ball attached to the end of a horizontal cord, is rotated in a circle of radius 1.9 m on a frictionless horizontal surface, What is the max speed the ball can have
A massless, rigid board is placed across two bathroom scales that are separated by a distance of 1.74 m. Find the weight of the person
The perspective provided by Multiple-Concept is useful here. The highest barrier that a projectile can clear is 15.60 m, while the projectile is launched at an angle of 23.0 ° above the horizontal. What is the projectile's launch speed.
A skier slides horizontally along the snow for a distance of 27 m before coming to rest. how fast was the skier going
In this section assume the sound speed in air is 343 m/s . A goose flying toward you at 11.3 m/s emits a squawk, which you hear at 246 Hz . Find the wavelength of the sound you hear
A particle of mass 0.500 kg is attached to the 100-cm mark of a meter stick of mass 0.150 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark
Jack and John are standing 6m apart from each other playing soccer. Jack kicks the ball to John and John kicks it back immediately. What is the speed of the ball when it's kicked back to Jack
A wheel with rotational inertia .146 kg-m2 turns through 40 rev as it slows down from an angular speed of 1.5 rad/s to a stop, what is the angular deceleration
A 55.3-kg ice skater is moving at 4.00 m/s when she grabs the loose end of a rope, Determine the force exerted by the horizontal rope on her arms
You are standing on a large sheet of frictionless ice and are holding a large rock. If your mass is 75.0kg and the rock's mass is 14.3kg, what is your speed after you throw the rock
A cable is connected at point A (1,2,3) and pulls towards point B (7,7,-1) the force in the cable is 100 pounds.
A 500 kg rocket sled can be accelerated at a constant rate from rest to 1500 km/h in 2.1 s. What is the magnitude of the required net force
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