Amodel rocket is launched at an angle of 70° above the x axis, with an initial velocity of 40 m/s. how high will the rocket be 5 seconds after launch? a. 36.8 m b. 65.4 m c. 84.9 m d. 122.5 m

Option (B) is correct.

using kinematic equation

h= height of rocket

V= initial velocity= 40 m/s

t= time= 5 s

g= -9.8 m/s²

h=40 sin70 (5)+1/2 (-9.8)(5)²

h=65.4 m

what type of charge does it have? negative

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.