A 1.2-kg mass is projected from ground level with a velocity of 30 m/s at some unknown angle above the horizontal. A short time after being projected, the mass barely clears a 16-m tall fence. Disregard air resistance and assume the ground is level. What is the kinetic energy of the mass as it clears the fence?
a. 0.35 kJ
b. 0.73 kJ
c. 0.40 kJ
d. 0.68 kJ
e. 0.19 kJ
A
Physics & Space Science
You might also like to view...
The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The distance from the starting point in meters is
a. 0 d. 8 b. 2 e. 16 c. 4
Physics & Space Science
The circuit below contains 4 100-W light bulbs. The emf is 110 V. Which light bulb(s) is(are) brightest?
a.
A
b.
B
c.
C
d.
D
e.
C and D
Physics & Space Science
On Venus,__________are large round geological faults in the crust caused by the intrusion of magma below the crust
A) multiringed basins B) micrometeorites C) magma oceans D) coronae
Physics & Space Science
A track star in the broad jump goes into the jump at 12 m/s and launches himself at 20° above the horizontal. How long is he in the air before returning to Earth?
Physics & Space Science