A projectile is fired at 30°. Neglecting friction, the change in kinetic energy when

A projectile is fired at 30°. Neglecting friction, the change in kinetic energy when it returns to the ground will be

Options

(a) zero
(b) 30%
(c) 60%
(d) 100%

Correct Answer:

zero

Explanation:

In case of projectile motion,
K.E. at projection = K.E. at landing on ground.
Hence there is no change in K.E.

admin:

Related Questions

  1. If temperature of gas increases from 27°C to 927°C, the kinetic energy will be
  2. A stone is dropped from a height h. It hits the ground with a certain momentum P. If the same stone is dropped from a height 100
  3. Four indentical thin rods each of mass M and length l, form a square frame
  4. Two spherical bodies of mass M and 5 M and radii R and 2 R released in free space
  5. A L-C-R circuit with L=1.00 mH, C=10μF and R=50Ω, is driven with 5 V AC voltage.