Question

An ant travels in a perfectly straight line in the

Answer #1

The ant starts moving along the negative x-axis, so its initial dispalcement is

Now it returns and moves 30 above the positive x-axis, so the displacement is

Final displacement of the ant is 40 below the positive x-axis. so the final dispalcement is

Since it reaches the initial point, thus the total dispalcement is zero.

and

Therefore, the magntiude of first displacement is **28.19
cm (or) 0.282 m**

The magnitude of the second displacement is **19.28
cm** (or) **0.2 m**

A skater travels in a straight line for 855 m in a
direction of 25.0 degrees north of east, then 560 m in a straight
line 22 degrees east of north.
a) What is the skater's resultant displacement?
b) If the motion took 4.40 min, determine the skater's average
speed and average velocity.

A particle travels along a straight line with a velocity
v=(12−3t^2) m/s , where t is in seconds. When t = 1 s, the particle
is located 10 m to the left of the origin.
Determine the displacement from t = 0 to t = 7 s.
Determine the distance the particle travels during the time
period given in previous part.

A Honda Civic travels in a straight line along a road. Its
distance x from a stop sign is given as a function of time t by the
equation x(t)= α t2− β t3, where α = 1.48 m/s2 and β = 5.40×10−2
m/s3
Calculate the average velocity of the car for the time interval
t=0 to t1=2.00 s .
vv =
nothing
m/sm/s
SubmitRequest Answer
Part B
Calculate the average velocity of the car for the time interval
t=0...

At an amusement park there is a rollercoaster that travels
straight up 80 meters and once it reaches the top drops the riders
straight back down. On the way up it has a maximum speed of 6.0
m/s. It’s acceleration and deceleration have a magnitude of 1.0
m/s2. (round your answers to three significant
figures)
Question
Answer
✔ How far does the ride travel upward before
reaching full speed from rest?
18.0
✘ How long does it take to get to the...

A race car starts from rest and travels east along a straight
and level track. First part of the motion the car’s velocity is
given by 13 m/s after which it starts to accelerate. What is the
acceleration of the car if it reaches to a velocity of 46.12 m/s
after 19 s.

An infinitely long, uniformly charged straight line has linear
charge density ?1 coul/m. A straight rod of length 'b' lies in the
plane of the straight line and perpendicular to it, with its enared
end at distance 'a' from the line. The charge density on the rod
varies with distance 'y', measured from the lower end, according to
?(on rod) = (?2*b)/(y+a), where ?2 is a constant. Find the
electrical force exerted on the rod by the charge on the...

difference between accelerated depreciation and straight-line
method

Explain Straight Line and Double Declining Balance
Depreciation.

A spaceship of mass m travels from the Earth to the Moon along a
line that passes through the center of the Earth and the center of
the Moon. (a) at what distance from the center of the Earth is the
force due to the Earth twice the magnitude of the force due to the
Moon? (b) How does your answer to part (a) depend on the mass of
the spaceship? Explain

1. In a perfectly competitive market a firm should be increasing
the output when
a.
marginal revenue is less than marginal cost.
b.
there are enough customers.
c.
marginal revenue is greater than marginal cost.
d.
marginal revenue is equal to marginal cost.
2. All firms operating in a perfectly competitive market produce
unique goods.
a.True
b. False
3. In perfect competition marginal revenue is equal to
price.
a.True
b.False
4.In perfectly competitive market the slope of marginal revenue
curve...

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