Which of the following statements is not possible? © A free fall motion ended up with a downward velocity of 38 m/s. O An object is traveling with a constant non-zero velocity and a constant acceleration. O An object is traveling eastbound with a constant acceleration westbound. O An object is traveling with a constant acceleration westbound.

Which of the following statements is not possible? © A free fall motion ended up with a downward velocity of 38 m/s. O An object is traveling with a constant non-zero velocity and a constant acceleration. O An object is traveling eastbound with a constant acceleration westbound. O An object is traveling with a constant acceleration westbound.

Name: Which of the following statements is not possible?© A free fall motion
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Description: Which of the following statements is not possible?© A free fall motion ended up with a downward velocity of 38 m/s.O An object is traveling with a constant non-zero velocity and a constant acceleration.O An object is traveling eastbound with a consta

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 1WUE: Physics Review A hockey player strikes a puck, giving it an initial velocity of 10.0 m/s in the...

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The froghopper Philaenus spumarius is supposedly the best jumper in the animal kingdom. To start a jump, this insect can accelerate at 4.00 km/s2 over a distance of 2.00 mm as it straightens its specially adapted jumping legs. Assume the acceleration is constant. (a) Find the upward velocity with which the insect takes off. (b) In what time interval does it reach this velocity? (c) How high would the insect jump if air resistance were negligible? The actual height it reaches is about 70 cm, so air resistance must be a noticeable force on the leaping froghopper.
Physics Review A hockey player strikes a puck, giving it an initial velocity of 10.0 m/s in the positive x-direction. The puck slows uniformly to 6.00 m/s when it has traveled 40.0 m. (a) What is the pucks acceleration? (b) At what velocity is it traveling after 2.00 s? (c) How long does it take to travel 40.0 m? (See Section 2.5.)
An insect called the froghopper (Philaenus spumarius) has been called the best juniper in the animal kingdom. This insect can accelerate at over 4.0 103 m/s2 during a displacement of 2.0 mm as it straightens its specially equipped jumping legs. (a) Assuming uniform acceleration, what is the insect's speed after it has accelerated through this short distance? (b) How long does it take to reach that speed? (c.) How high could the insect jump if air resistance could be ignored? Note that, the actual height obtained is about 0.70 m, so air resistance is important here.
An object moves with constant acceleration 4.00 m/s2 and over a lime interval reaches a final velocity of 12.0 m/s. (a) If its initial velocity is 6.00 m/s, what is its displacement during the time interval? (b) What is the distance it travels during this interval? (c) If its initial velocity is -6.00 m/s, what is its displacement during points, (d) Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? (e) Explain physically why it does or does not agree.
Which of the following situations is impossible? O A. An object has velocity directed east and acceleration directed east. B. An object has zero velocity but nonzero acceleration. OC An object has constant nonzero velocity and changing acceleration. O D. An object has constant nonzero acceleration and changing velocity. O E. An object has velocity directed east and acceleration directed vwest.
A ball is tossed straight up and later returns to the point from which it was launched. If the ball is subject to air resistance as well as gravity, which of the following statements is correct? a. The magnitude of the ball's acceleration on the way up is greater than on the way down b. The velocity of the ball at the top of its flight is zero therefore acceleration at this point is also zero O . The time for the ball to fall is equal to the time it takes to rise. o d. The speed of the ball when it returns to it launch position is greater than the launch speed
Is it possible for an object to have zero velocity and constant nonzero acceleration? O Yes, but only if it is not moving at all. O No, if its velocity is zero its acceleration must also be zero. Yes, all objects with zero velocity have nonzero acceleration. Yes, but its velocity must only be zero for an instant. O No, if its acceleration is not zero its velocity cannot be zero.
Which statement is true? O Average velocity can be zero when average speed is not. O Average velocity is always positive. O Speed describes how fast and in what direction an object is moving. O Average speed is the same as average velocity
Which of the following statements is correct? O All statements are correct O A particle moving in a curved path with a constant speed has a zero acceleration. O A particle moving in a curved path with a constant speed has a non-zero acceleration. O A particle moving in a straight path with varying speed has a zero acceleration. O A particle moving in a straight path with a constant speed has a non-zero acceleration.
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Suppose that a passenger intent on lunch during his first ride in a hot-air balloon accidently drops an apple over the side during the balloon’s liftoff. At the moment of the apple’s release, the balloon is accelerating upward with a magnitude of 4.0 m/s2 and has an upward velocity of magnitude 2 m/s.a.)What is the magnitude of the acceleration of the apple just after it is released?b.What is the direction of the acceleration of the apple just after it is released?c.Just then, is the apple moving upward or downward, or is it stationary?d.What is the magnitude of its velocity just then?e.In the next few moments, does the speed of the apple increase, decrease, or remain constant?
You are driving your car along a country road at a speed of 27.0 m/s. As you come over the crest of a hill, you notice a farm tractor 25 m ahead of you on the road, moving in the same direction as you at a speed of 12.0 m/s. You immediately slam on your brakes and slow down with a constant acceleration of magnitude 8 m/s2. Will you hit the tractor before you stop? Ο NO O Yes How far will you travel before you stop or collide with the tractor? 6.5 X m If you stop, how far is the tractor in front of you when you finally stop? (If you instead collide, enter 0 below.) m Enter a number. Submit Answer