CALC A rocket is Tired at an angle from the top of a tower of height h 0 = 50.0 m. Because of the design of the engines, its position coordinates are of the form x ( t ) A + Bt 2 and y ( t ) = C + Dt 3 where A , B , C , and D are constants. The acceleration of the rocket 1.00 s after Tiring is a = (4.00 ȋ + 3.00 ĵ ) m/s 2 . Take the origin of coordinates to be at the base of the tower, (a) Find the constants A , B , C , and D , including their SI units, (b) At the instant alter the rocket is Tired, what are its acceleration vector and us velocity? (c) What are the x - and y -components of the rocket’s velocity 10.0 s after it is fired, and how fast is it moving? (d) What is the position vector of the rocket 10.0 s alter it is fired?
CALC A rocket is Tired at an angle from the top of a tower of height h 0 = 50.0 m. Because of the design of the engines, its position coordinates are of the form x ( t ) A + Bt 2 and y ( t ) = C + Dt 3 where A , B , C , and D are constants. The acceleration of the rocket 1.00 s after Tiring is a = (4.00 ȋ + 3.00 ĵ ) m/s 2 . Take the origin of coordinates to be at the base of the tower, (a) Find the constants A , B , C , and D , including their SI units, (b) At the instant alter the rocket is Tired, what are its acceleration vector and us velocity? (c) What are the x - and y -components of the rocket’s velocity 10.0 s after it is fired, and how fast is it moving? (d) What is the position vector of the rocket 10.0 s alter it is fired?
CALC A rocket is Tired at an angle from the top of a tower of height h0 = 50.0 m. Because of the design of the engines, its position coordinates are of the form x(t) A + Bt2 and y(t) = C + Dt3 where A, B, C, and D are constants. The acceleration of the rocket 1.00 s after Tiring is a = (4.00ȋ + 3.00ĵ) m/s2. Take the origin of coordinates to be at the base of the tower, (a) Find the constants A, B, C, and D, including their SI units, (b) At the instant alter the rocket is Tired, what are its acceleration vector and us velocity? (c) What are the x- and y-components of the rocket’s velocity 10.0 s after it is fired, and how fast is it moving? (d) What is the position vector of the rocket 10.0 s alter it is fired?
A postman leaves the post office and drives 1.6 km in the north direction. He then drives in a direction 60.0° south of
east for 5.9 km (see Figure)
North
60°
+ East
Post office
What is his resultant displacement from the post office (in vector form)?
O a. -3.51 mi+ 2.95 mj
O b. 5.90 mi+ 1.60 mj
O c. 2.95 mi+-3.51 mj
O d.-1.35 mi+5.11 mj
O e. None of the above
stion
A postman leaves the post office and drives 1.6 km in the north direction. He then drives in a direction 60.0° south of eact for 5.9 km (see Figure)
North
out of
60°
East
Post office
What is his resultant displacement from the post office (in vector form)?
O a. -3.51 mi + 2.95 mj
Ob. 5.90 mi+ 1.60 mj
Oc. 2.95 mi+-3.51 mj
Od. None of the above
O e. 1.35 mi- 5.11 mj
Starting from a location with position vector rx = -19.5 m and r1y = 23.1 m, a rabbit hops around for 10.7 seconds with
average velocity vav.x = -2.43 m/s and vav.y = 1.01 m/s. Find the components of the position vector of the rabbit's final
location, r2x and r2.y.
m
r2,x
m
r2.y
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