A cannon tilted upward at θ = 35 ∘ fires a cannonball with a speed of 100 m/s .

At that instant, what is the component of the cannonball’s velocity parallel to the ground?

Express your answer using two significant figures.

57.4 m/s

Explanation:

Component of vectors parallel to the ground = v sin(titha)

= 100×sin35

= 57.4 m/s

You can read further:

https://www.mathalino.com/reviewer/engineering-mechanics/components-of-a-force

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )