Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Find displacement, velocity and acceleration.

1. Displacement is which of the following types of quantities?
a. vector
b. scalar
c. magnitude
d. Dimensional

2. A bird, accelerating from rest at a constant rate, experiences the displacement of 28 m in 11 s. What is an average velocity?
a. 1.7 m/s
b. 2.5 m/s
c. 3.4 m/s
d. 4.2 m/s
e. Zero

3. Jeff throws a ball straight up. For which situation is the vertical velocity zero?
a. on the way up
b. at the top
c. on the way back down
d. both a and c are correct
e. none of the above

4. A railroad train travels forward along a straight track at 80 m/s for 1.000 m and then travels at 50.0 m/s for the next 1.000 m. What is an average velocity?
a. 65.0 m/s
b. 61.5 m/s
c. 63.7 m/s
d. 70.0 m/s
e. 68.3 m/s

5. A bird, accelerating from rest at a constant rate, experiences a displacement of 28 m in 11 s. What is its acceleration?
a. 0.21 m/s2
b. 0.46 m/s2
c. 0.64 m/s2
d. 0.78 m/s2
e. 0.97 m/s2


6. A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8s. What distance will the sports car travel during the 8 s acceleration period? (Hint: First convert speed to m/s.)
a. 55.5 m
b. 77.7 m
c. 111 m
d. 222 m
e. 268 m

7. A rock is thrown straight up with an initial velocity of 19.60 m/s. What time interval elapses between the rocks's being thrown and its return to an original launch point? (Acceleration due to gravity is 9.80 m/s2.)
a. 4.00 s
b. 5.00 s
c. 8.00 s
d. 10.0 s
e. 15.0 s

8. A baseball is released at rest from the top of Washington Monument. It hits the ground after falling for 6s. What was the height from which the ball was dropped? (g = 9.8 m/s2 and assume air resistance is negligible)
a. 1.5 102 m
b. 1.8 102 m
c. 1.1 102 m
d. 2.1 102 m
e. 2.5 102 m

9. A ball is thrown vertically upwards at 19.60 m/s. For its complete trip (up and back down to the starting position), its average speed is:
a. 19.6 m/s.
b. 9.80 m/s.
c. 4.90 m/s.
d. 3.15 m/s.
e. Not given.

10. A jogger runs halfway around a circular path with a radius of 60 m. What, respectively, are the magnitude of the displacement and the distance jogged?
a. 60 m, 188 m
b. 120 m, 188 m
c. 0 m, 377 m
d. 120 m, 377 m
e. 60 m, 377 m

Physics, Academics

  • Category:- Physics
  • Reference No.:- M917985

Have any Question? 


Related Questions in Physics

Choose two of the following questions to respond to you

Choose two of the following questions to respond to. You should make sure to let us know which question you are responding to. Respond to the questions you choose as thoughtfully and thoroughly as possible, drawing from ...

A small can of radius r70cm and height h100cm is suspended

A small can of radius r=7.0cm and height h=10.0cm is suspended by a string in a beaker of water so that it's depth is 15cm below the surface. the can is heavy enough that it would sink if it were not tied to the string.( ...

A packed tower has been designed to strip component a from

A packed tower has been designed to strip component A from an aqueous stream into a counter-flowing air stream. At a given plane in the tower, the concentrations of the two adjacent streams are p A ,  G  = 4 × 10 3  Pa a ...

Two soccer players kick a soccer ball back and forth along

Two soccer players kick a soccer ball back and forth along a straight line. The first player kicks the ball 16 m to the right to the second player. The second player kicks the ball to the left weakly; it only moves 1.7 m ...

Each of the graphs in figure 174 is of a polynomial the

Each of the graphs in Figure 1.74 is of a polynomial. The windows are large enough to show end behavior. (a) What is the minimum possible degree of the polynomial? (b) Is the leading coefficient of the polynomial positiv ...

For a particular car windscreen wiper mechanism an electric

For a particular car windscreen wiper mechanism, an electric motor is required that can provide 5 N m of torque at about 35 rpm. A small permanent magnet d.c. motor is suggested as being suitable for this purpose. The ma ...

Investigate how fast sexual and asexual species evolve if

Investigate how fast sexual and asexual species evolve if they have a fitness function with interactions. For example, let the fitness be a sum of exclusive-ors of pairs of bits; compare the evolving fitnesses with those ...

While the genome acquires information through natural

While the genome acquires information through natural selection at a rate of a few bits per generation, your brain acquires information at a greater rate. Estimate at what rate new information can be stored in long term ...

On may 9 2007 cbs evening news had a 43 point rating

On May 9, 2007, CBS Evening News had a 4.3 point rating. (Ratings measure the number of viewers.) News executives estimated that a 0.1 drop in the ratings for the CBS Evening News corresponds to a $5.5 million drop in re ...

A small rubber ball is launched by a compressed-air cannon

A small rubber ball is launched by a compressed-air cannon from ground level with an initial speed of 19.9 m/s directly upward. Choose upward as the positive direction in your analysis. (a) What is the maximum height abo ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen