Q: An ant crawls on the floor along the curved path shown in
An ant crawls on the floor along the curved path shown in Figure P3.4. The ant’s positions and velocities are indicated for times ti = 0 and tf = 5.00 s. Determine the x - and y - co...
See AnswerQ: A car is traveling east at 25.0 m/s
A car is traveling east at 25.0 m/s when it turns due north and accelerates to 35.0 m/s, all during a time of 6.00 s. Calculate the magnitude of the car’s average acceleration.
See AnswerQ: A rabbit is moving in the positive x - direction at 2
A rabbit is moving in the positive x - direction at 2.00 m/s when it spots a predator and accelerates to a velocity of 12.0 m/s along the negative y - axis, all in 1.50 s. Determine (a) The x – compon...
See AnswerQ: A student stands at the edge of a cliff and throws a
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18.0 m/s. The cliff is 50.0 m above a flat, horizontal beach as shown in Figure P3.7. (a) What a...
See AnswerQ: One of the fastest recorded pitches in major league baseball, thrown
One of the fastest recorded pitches in major league baseball, thrown by Tim Lin cecum in 2009, was clocked at 101.0 mi/h (Fig. P3.8). If a pitch were thrown horizontally with this velocity, how far wo...
See AnswerQ: The best leaper in the animal kingdom is the puma, which
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height...
See AnswerQ: A paper in the journal Current Biology tells of some jellyfish-
A paper in the journal Current Biology tells of some jellyfish-like animals that attack their prey by launching stinging cells in one of the animal kingdom’s fastest movements. High-speed photography...
See AnswerQ: A rock is thrown upward from the level ground in such a
A rock is thrown upward from the level ground in such a way that the maximum height of its flight is equal to its horizontal range R. (a) At what angle θ is the rock thrown? (b) In terms of the origin...
See AnswerQ: A placekicker must kick a football from a point 36.0
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the gro...
See AnswerQ: The record distance in the sport of throwing cowpats is 81.
The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Assuming the initial launch angle was 45° and neglecting air resis...
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