The additive inverse of [-4+3-1] and [5-8+3] is?
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Answer:
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Answer:
11th
Physics
Motion in a Straight Line
Problems on Equation of Motion
A motorcycle stunt rider ri...
PHYSICS
A motorcycle stunt rider rides off the edge of a cliff. Just at the edge his velocity is horizontal, with magnitude 9.0ms
−1
. Find the motorcycle's position, distance from the edge of the cliff and velocity after 0.5s.
EASY
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CALCULATOR
Enter the know values to find unknown
Acceleration
Distance
Final Velocity
v = u + a*t
Initial Velocity u
m/s
Final Velocity v
m/s
Time t
s
Acceleration a
m/s²
RESET VALUES
ANSWER
At t=0..50s the x−and y- coordinates are
x=v
0x
t
=(9.0ms
−1
)(0.50s)=4.5m
y=−
2
1
gt
2
=−
2
1
(10ms
−2
)(0.50s)
2
=−
4
5
m
the negative value of y shows that this time the motorcycles is below its starting point.
The motorcycle's distance from the origin at this time.
r=
x
2
+y
2
=
(
2
9
)
2
+(
4
5
)
2
=
4
349
m
The components of velocity at this time are
v
x
=v
0x
=9.0ms
−1
v
y
=−gt=(−10ms
−2
)(0.50s)=−5ms
−1
The speed (magnitude of the velocity ) at this time is
v=
v
x
2
+v
y
2
=
(9.0ms
−1
)
2
+(−5ms
−1)
2
=
106
ms
−1