A projectile is launched from the top of a cliff of unknown height. The initial velocity vector is 200 m/s at an angle of 30 degrees above the horizontal. After 1 second of flight, what are the x and y components of the projectile’s acceleration?

pe = weightxheight = 2000x1000=2,000,000joules

no sign of dia of fuel cell

wavelegth as in spectrum red oygbiv

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.