Projectile Motion: A 5.0-kg stone is thrown upward at 7.5 m/s at an angle of 51° above the horizontal from the upper edge of a cliff, and it hits the ground 1.5 s later with no air resistance. Find the magnitude of its velocity vector just as it reaches the ground.
Fill in the blank(s) with the appropriate word(s).
10 m/s
You might also like to view...
A box is placed on a table which rests on the floor. The box pushes on the table; the Newton's third law pair to the the box's push on the table is the table's push on the floor
A) True B) False
Relativistic effects are important
A. at high velocities B. at low velocities C. at all velocities
In an AC circuit, the ratio of average current to maximum current is:
a. zero. c. 1.0. b. 0.707. d. 0.5.
The material that accretes onto a neutron star or black hole is expected to emit X-rays because
a. the material will produce synchrotron radiation.
b. hydrogen nuclei begin to fuse and emit high-energy photons.
c. the material will become hot enough that it will radiate most strongly at X-ray wavelengths.
d. as the material slows down it converts thermal energy to gravitational potential energy.
e. None of the other choices are correct.