Answer:
the direction that should be walked by Ricardo to go directly to Jane is 23.52 m, 24° east of south
Explanation:
given information:
Ricardo walks 27.0 m in a direction 60.0 ∘ west of north, thus
A= 27
Ax = 27 sin 60 = - 23.4
Ay = 27 cos 60 = 13.5
Jane walks 16.0 m in a direction 30.0 ∘ south of west, so
B = 16
Bx = 16 cos 30 = -13.9
By = 16 sin 30 = -8
the direction that should be walked by Ricardo to go directly to Jane
R = √A²+B² - (2ABcos60)
= √27²+16² - (2(27)(16)(cos 60))
= 23.52 m
now we can use the sines law to find the angle
tan θ =
= By - Ay/Bx -Ax
= (-8 - 13.5)/(-13.9 - (-23.4))
θ = 90 - (-8 - 13.5)/(-13.9 - (-23.4))
= 24° east of south
What are the following broskito?
Answer:
U=4m/s
V=6m/s
T=5s
Acceleration =v-u/t
6-4/5
=2/5 metre/second(square).
<span>The correct answer is D. stop motion animation. It's called stop motion because you make an illusion of a motion by moving and stopping the characters and then reshooting. This is pretty common but takes a lot of time so not many people choose to do it. It also takes great skill to do it, not just patience.</span>
Given that roller coaster is of tear drop shape
So the speed at the top is given as
v = 11 m/s
acceleration at the top is given as
a = 2.9 g
now we know the formula of centripetal acceleration as
PART B)
now if the total mass is given as
m = 2821 kg
now the Net force will be given as
Now by force equation we will have
PART C)
If the radius of the loop is 14 m
speed is given by same v = 11 m/s
now the acceleration is given as
PART D)
Now for normal force at the top is given by force equation
so here normal force is coming with negative sign so it will not be possible to complete the circular path in this case
So normal force will be ZERO