In Jule Verne's 1865 story with this title, three men went to the moon in a shell fired from a giant canon. (a) Find the minimum muzzle speed needed to shoot a shell straight up to a height above the earth equal to the earth's radius R. (b) Find the minimum muzzle speed that would allow a shell to escape from the earth completely. (a) 2 Projectile, mass m r₂ = 2RE 1 r₁= RE Earth, mass me (b) 2 Projectile, mass m r₂ = 0 < 1 r₁= RE Earth, mass me

solve

Given aB = O.2ax +nay + O.6az the unit vector along B. What should be the value of n if B has a magnitude of 2? * 0.575 0.489 0.6778 O 0.774

Vector A has magnitude 11.89 m and vector B has magnitude 13.89 m. The magnitude of the cross product A x B is 32.01 m2. What is the dot product between these two vectors? Express your answer in two decimal places.

29. A resultant force of 10. newtons is made up of two component forces acting at right angles to each other. If the,magnitude of one of the ponents is 6.0 newtons, the magnitude of the other component must be (3) 6.0 N (2) 8.0 N (4) 4 N (1) 16 N

2. A vector has a magnitude of 7.20 m and an angle of -32.5°. Write this vector in unit vector notation.

A force of 100N makes an angle Determine both the x-component with the x-axis and has a y-component of 30N. of the force and the angle e.

A force 4 N making angle 45 with x axis. The y component is?

Question 2: The cross product of A and B vectors was shown by C vector. Please calculate the vector. A = 21 - j+ 2k B = 3i + 4j – k a) č = AxB=?

51. A roller coaster moves 90.0 m horizontally forward, then travels 40.0 m at an angle of 24.0° above the horizontal forward. What is its displacement from its starting point?