Acceleration
Instruction Active
Explaining Acceleration
Determine the cause of acceleration in each scenario.
An airplane turning from south to west at constant speed is accelerating due to a change in direction
A biker going 7 m/s west after travelling north at 5 m/s is accelerating due to a change in
A runaway shopping cart speeding up as it goes down a hill is accelerating due to a change in

A. direction

B. speed and direction

C. speed

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.

answer///terminator or twilight zone;