Question

A halfback is initially running south at a speed of 10.7 m/s, quickly cuts to his right, and 0.505 s later is running 60.0° west of south at 11.1 m/s. Find his average acceleration. magnitude_____ direction______ north of west

Answer #1

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A 379-kg boat is sailing 11.0° north of east at a speed of 1.80
m/s. 35.0 s later, it is sailing 38.0° north of east at a speed of
4.30 m/s. During this time, three forces act on the boat: a 32.1-N
force directed 11.0° north of east (due to an auxiliary engine), a
21.8-N force directed 11.0° south of west (resistance due to the
water), and (due to the wind). Find the (a) the magnitude and (b)
direction of...

A 373-kg boat is sailing 12.0° north of east at a speed of 2.00
m/s. 31.0 s later, it is sailing 39.0° north of east at a speed of
4.00 m/s. During this time, three forces act on the boat: a 31.9-N
force directed 12.0° north of east (due to an auxiliary engine), a
20.8-N force directed 12.0° south of west (resistance due to the
water), and (due to the wind). Find the (a) the magnitude and (b)
direction of...

A 362-kg boat is sailing 17.0° north of east at a speed of 1.60
m/s. 40.0 s later, it is sailing 40.0° north of east at a speed of
4.40 m/s. During this time, three forces act on the boat: a 30.5-N
force directed 17.0° north of east (due to an auxiliary engine), a
23.8-N force directed 17.0° south of west (resistance due to the
water), and (due to the wind). Find the (a) the magnitude and (b)
direction of...

My Notes
A motorist drives south at 20.0 m/s for 3.00 min, then turns
west and travels at 25.0 m/s for 2.40 min, and finally travels
northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find
the following values.
(a) total vector displacement
m (magnitude) ° south of west
(b) average speed
m/s
(c) average velocity
m/s (magnitude) ° south of west

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.

On a horizontal road, a car is traveling West at a constant
speed of 7.60 m/s After 32 s , it has rounded a corner and is now
heading North at a constant speed of 12.9 m/s. What is the
magnitude of the car's average acceleration during this 32 s time
interval?

On a horizontal road, a car is traveling West at a constant
speed of 12.0 m/s. After 52 s, it has rounded a corner and is now
heading North at a constant speed of 22.8 m/s.
What is the magnitude of the car's average acceleration during
this 52 ss time interval?

Paul is driving south down Pembina highway at a constant speed
of 20 m/s. He sees a truck in one of the north-bound lanes. The
truck is initially stopped at the next traffic light, which is 500
m away. At this point, the light turns green and the truck starts
accelerating northwards (towards Paul) at a constant acceleration
of 1.2 m/s2. At what distance from the position where Paul first
saw the truck, do they pass each other?

On a horizontal road, a car is traveling West at a constant
speed of 11.4 m/s . After 16 s , it has rounded a corner and is now
heading North at a constant speed of 16.0 m/s .
What is the magnitude of the car's average acceleration during
this 16 s time interval?
0.29 m/s2
1.2 m/s2
0 m/s2
1.7 m/s2

A car is traveling west at 22.5 m/s when it turns due south and
accelerates to 25.0 m/s, all during a time of 8.00 s. Calculate the
magnitude of the car's average acceleration (in
m/s2).

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