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
- The velocity of an object at the end of 5s is 25 m/s. If it started from rest, what is its acceleration?
- A stone dropped from the top of a cliff strikes the ground in 4 seconds. How much more time will it take to strike if the cliff was 4 times as high?
- The force of gravitation between two bodies is F. If the mass of one body is doubled, the force becomes:
- An object covers equal distances in equal intervals of time. This is called:
- The unit of energy in the FPS system is: