Physicshard · Past Paper
A body of mass m is thrown at an angle theta with the horizontal. At the highest point, its kinetic energy is:
AZero
B1/2 mv^2
C1/2 mv^2 cos^2(theta)
D1/2 mv^2 sin^2(theta)
✓ Correct Answer: C — 1/2 mv^2 cos^2(theta)
At the highest point, the vertical velocity is zero, only horizontal velocity v*cos(theta) remains.
Share this question
More from Physics
- What happens to the total resistance when resistors are connected in series?
- If the distance between two masses is reduced to one-third, the gravitational force becomes:
- A sound source produces 40 compressions and 40 rarefactions in 0.4 seconds. What is the frequency of the sound?
- One horse power (1 HP) is equal to how many Watts?
- The value of 'g' at the poles of the Earth is approximately: