Question

A boy runs for 2 minutes to the right at speed of 2.0 m/s. Then he stops for 1.0 minute. Then runs 100 m to the left at speed of 1.5 m/s.

a) Calculate the total time of his round trip **in
seconds**. (show complete solution).

b) Calculate the total distance in meters(m). show formula first.

c) Calculate the total displacement I meters(m). show formula first.

d) Calculate the average speed in m/s. show formula first.

e) Calculate the average velocity in m/s. show formula first.

Answer #1

A boy walks a distance of 100 meters to the right at a steady
speed of 1.00 m/s. Then he stops for 30 seconds. Then returns back
and walks for 2 minutes to the left at speed of 1.5m/s.
Calculate the total time of his round trip.
Calculate the total distance.
Calculate the total displacement.
Calculate the average speed.
Calculate the average velocity

A transverse pulse travels to the right along a string
at a speed v=2.5 m/s. At the shape of the pulse is given by the
function
y(x,0)=0.03 e(-x^2/0.04) cos(20πx)
where x and y are in meters. (i) Determine a formula for
the pulse's displacement at any time . (ii) Find the displacement
of the pulse of the point x=1 m at time t=0.4 s. (iii) What is the
transverse velocity of a point on the string having x=1 m at...

1. If a man ran at 1 m/s for 10 s and then -1 m/s for 10 s more.
Show calculations. 10 pts
What would be the total distance he traveled? ______________
m
What would be his average speed? ______________ m/s
What was his displacement at the end of his trip? ______________
m
What was his average velocity? ______________ m/s and direction
____________

boy has a mass of 55.0kg, is skiing 3.50 m/s west when he runs
head on into a girl,
mass = 45.0 kg, going east at 2.50 m/s. To decrease
the impact he grabs the girl so they are stuck together. (using
calc physics)
What is the total momentum (magnitude and direction) just before
the collision?
What is the total momentum (magnitude and direction) right after
the collision?
What is the final velocity of the goofy and the girl?
How much...

An athlete runs the mile in 3 minutes, 53.9 seconds. At the same
speed, how many seconds does it take the same athlete to run 1900
m? (1 mile = 1609.3 meters) (enter your answer to 2 significant
figures)
The day is defined as having exactly 24 hours of 60 minutes, and
each minute is exactly 60 seconds. The year is 365.24 days long.
How many seconds are there in 13 centuries, (where a century is 100
years)? (Enter your...

A 0.10 kg object with a speed of 2.0 m/s in the +x direction
makes a head-on elastic collision with a 0.15 kg object moving in
the -x direction with a speed of 3.0 m/s. What is the final
velocity of the 0.10 kg object after the collision?
a. – 4.0 m/s
b. + 1.0 m/s
c. - 1.0 m/s
d. + 4.0 m/s

A man walks 273 north in 195 s, then turns west and accelerates
in 2.6 s from his previous speed to a running speed of 3.14 m/s. If
he then runs west at this speed for 10 minutes, find this average
velocity (magnitude and direction) for the whole trip. Please
provide all work/formula.

This is the question..
A car drove EAST from point A for 30 minutes;
Stopped at point B for 10 minutes;
Then drove NORTH for 40 minutes in *1.5 times the speed of the
first leg*.
The AVERAGE VELOCITY was 80 km/hr.
A- what was the car’s velocity in the first leg?
B- what was the distance covered?
C- what was the final displacement of the car from point
A?
D- what was the distance from point B to point...

An athlete completes one round of a circular track of diameter
200 m in 40 s, calculate the displacement and displacement covered
by the athlete at the end of 2 minutes 20 seconds, give explanation
of your answer with relevant figure. Using the given data predict,
average velocity & average speed of the athlete.

a 1.5 kg car (1) initially moving at 4.0 m/s to the right
collides with a 2.0 kg car (2) initially moving at 2.0 m/s to the
left. After the inelastic collision, car 1 is moving to the left at
1.2 m/s
A) What is the velocity and direction of car 2 after the
collision?
B) What is the change in total kinetic energy and the percentage
of initial kinetic energy remaining after the collision?

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