Jill runs 100 m in 15.0 s. Jon speedwalks 100 m in 30.0 s. If Jill and Jon have the same mass, then Jill's kinetic energy would be
Jill
(1/2) m (100/15)^2
Jon
(1/2) m (100/30)^2
Jill/Jon = 30^2/15^2 = 4
Jill's ke = 4 time Jon's
What is the distance traveled by a lynx that ran 6.94 m/s for 930 s?
A birdwatcher observes an eagle soaring through the sky, searching for food on the ground below. The watcher spots the eagle flying 10 m north, then 16 m south, and then 14 m north, over a span of 14 seconds.
apps a scam
To calculate Jill's kinetic energy, we can use the equation:
Kinetic energy (KE) = 0.5 * mass * velocity^2
Since both Jill and Jon have the same mass, we can omit it from the equation. The only difference between Jill and Jon is their velocities.
Jill's velocity can be calculated using the formula:
Velocity (v) = distance / time
Jill runs 100 m in 15.0 s, so her velocity would be:
v = 100 m / 15.0 s = 6.67 m/s (rounded to two decimal places)
Now, let's substitute Jill's velocity into the equation for kinetic energy:
KE = 0.5 * (6.67 m/s)^2 = 0.5 * 44.44 m^2/s^2 = 22.22 J (rounded to two decimal places)
Therefore, Jill's kinetic energy would be approximately 22.22 Joules.