While traveling from boston to hartford, person a drives at a constant speed of 55 mph for the entire trip. person b drives at 65 mph for half the distance and then drives 45 mph for the second half of the distance. when would b arrive in hartford relative to a? (assume person a and person b leave boston at the same time.)

B will take 1.034 times the time of A from Boston to Hartford.

Explanation:

Let the distance from Boston to Hartford be S.

Person A drives at a constant speed of 55 mph for the entire trip,

Time taken by person A

Person B drives at 65 mph for half the distance and then drives 45 mph for the second half of the distance.

Time taken by person B

Ratio of time of arrival of B to A

B will take 1.034 times the time of A from Boston to Hartford.

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.

conduct current i mean it makes sense