Option 4 of 5
-Fair
A skydiver is dropped out of an airplane
at an altitude of 10000 feet. He reaches
a terminal velocity 40 seconds later.
Consider four positions during his fall.
A: Initial State (t = 0 seconds)
B: 10 Seconds After Drop
C: 30 seconds After Drop
D: 40 seconds After Drop
Toggle through the set of vector
diagrams at the right to identify the
relative magnitude of the air resistance
vector for each of these four positions.
(Consider vertical motion only.
IF
air
IF.
air
Check Answer

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///isobars;

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.