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melomori [17]
3 years ago
15

Car A has a mass of 1,000 kg and is traveling 60 km/hr. Car B has a mass of 2,000 kg and is traveling 30 km/hr. Compare the kine

tic energy of car A with that of car B?
A) equal
B) half as much
C) twice as much
D) four times as much
Physics
2 answers:
givi [52]3 years ago
7 0

Answer:

twice as much

Explanation:

Using the formula for the amount of kinetic energy: K.E. = 1/2 m v2. You would find that car A has twice as much energy as car B.

Artyom0805 [142]3 years ago
3 0

Answer:

c) Twice as much

Explanation:

As we know that kinetic energy is given by the formula

K = \frac{1}{2}mv^2

here we know that

m = mass of the object

v = speed of the object

so here we will have kinetic energy of Car A

K = \frac{1}{2}(1000)(60^2)

K_a = 1.8 \times 10^6

now we have kinetic energy of B is given as

K_b = \frac{1}{2}(2000)(30^2)

K_b = 0.9 \times 10^6

So kinetic energy of Car A is double that of Kinetic energy of car B

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