7500

Physics Kinematics Level: Misc Level

An eagle is flying due east at 8.9 m/s carrying a gopher in its talons. The gopher manages to break free at a height of 12 m. What is the magnitude of the gopher,s velocity as it reaches the ground?

a.22 m/s

b.18 m/s

c.11 m/s

d.9.8 m/s

e.8.9 m/s




7499

Physics Kinematics Level: Misc Level

A delivery truck leaves a warehouse and travels 2.60 km north. The truck makes a right turn and travels 1.33 km east before making another turn and traveling 1.45 km south to arrive at its destination. what is the magnitude and direction of the truck,s displacement from the warehouse?

a. 1.76 km,40.8% north of east?

b.1.15 km, 59.8% north of east

c.1.33 km,30.2% north of east

d.2.40 km,45.0% north of east

e.5.37 km, 49.2% north of east




7498

Physics Kinematics Level: Misc Level

A tennis ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later,the ball has an instantaneous velocity in the upward direction of 15.0 m/s. what is the magnitude of the acceleration due to gravity on the surface of this planet?

a. 5.0 m/s2

b.9.8 m/s2

c.12 m/s2

d.15 m/s2

e.24 .m/s2




7497

Physics Kinematics Level: Misc Level

Starting from rest,a particle which is confined to move along a straight line is accelerated at a rate of 5.0 m/s2.Which statement concerning the slope of the position versus time graph for this particle is true?

a.The slope has a constant value of 5.0 m/s.

b.The slope has a constant value of 5.0 m/s2.

c.The slope is both constant and negative.

d.The slope is not constant and increases with increasing time.

e.The slope is not constant and decreases with increasing time.




7496

Physics Kinematics Level: Misc Level

Ball A is dropped from rest from a window. At the same instant, ball B is thrown downward; and ball C is thrown upward from the same window. Which statement concerning the balls is necessarily true if air resistance is neglected?

a.At some instant after it is thrown, the acceleration of ball C is zero.

b.All three balls strike the ground at the same time.

c.All three balls have the same velocity at any instant.

d.All three balls have the same acceleration at any instant.

e.All three balls reach the ground with the same velocity.




7495

Physics Kinematics Level: Misc Level

Which one of the following situations is not possible?

a.A body has zero velocity and non-zero acceleration.

b.A body travels with a northward velocity and a northward acceleration.

c.A body travels with a northward velocity and a southward acceleration.

d.A body travels with a constant velocity and a time-varying acceleration.

e.A body travels with a constant acceleration and a time-varying velocity.




7494

Physics Kinematics Level: Misc Level

An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval?

a.2.0 m/s2, downward

b.2.0 m/s2, upward

c.5.3 m/s2,downward

d.5.3 m/s2, upward

e.2.7 m/s2,downward




7493

Physics Kinematics Level: Misc Level

A racecar,traveling at constant speed, makes one lap around a circular track of radius r in a time t [NOTE; the circumference of a circle is given by C=2 nr]. Determine the magnitude of the average velocity of the car for one complete lap.

a.r/t

b.2r/t

c.n/t

d.2nr/t

e.zero m/s




7492

Physics Kinematics Level: Misc Level

For which one of the following situations will the path length equal the magnitude of the displacement?

a.A jogger is running around a circular path.

b.A ball is rolling down an inclined plane.

c.A train travels 5 miles east; and then, it stops and travels 2 miles west.

d. A ball rises and falls after being thrown up from the earth, s surface.

e.A ball on the end of a string is moving in a vertical circle.




7362

Physics Kinematics Level: Misc Level

A punter kicks a punt 4.0 seconds later the punt return fields the punt 40 yards down field. Assume that he receives the ball at the same hieght that it was punted Find

a.Vxo

b.Vyo

c.Vo




7359

Physics Kinematics Level: Misc Level

A  mountain climber throws a stone straight down into a mountain pool 50 meters below. The stone has an initial velocity of 2 m/s straight down.

a. How long till the stone hits the water

b.Suppose he throws a second stone 1 second later. With what velocity would he have to throw the second stone if both stones hit at the same time.




7357

Physics Kinematics Level: Misc Level

A is projectile is launched into the air with a velocity of 30 m/s at an angle of 30 from the horizontal. Assume the there is no friction and that the ground is level. Find vxo and vyo, the maximume height the projectile reaches,the distance it travels when it hits the ground, and the final velocity of (magnitude and direction)




7343

Physics Kinematics Level: Misc Level

A 10-kg is set moving with a constant speed of 6 m/s on a rough horizontal surface If the force of friction is 20 N, approximately how far does the block travels before it stops?




7328

Physics Kinematics Level: Misc Level

A skier leaves the top of a slope with an initial speed of 5.0 m/s.The speed at the bottom is 13 m/s. What is the height of the slope?




7327

Physics Kinematics Level: Misc Level

A pebble rolls off a roof and falls vertically.Just before it hits the ground, it,s speed is 17 m/s. Neglecting air resistance, what is the height of the building?


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