Physics, 10.02.2022 17:40, abbisauers
A projectile of mass M, initially at rest, is acted upon by a net force [including gravity] that
increases linearly with time as the projectile accelerates in a vertical gun barrel of length L,
Fy = bt (1)
where b is a constant. After leaving the gun barrel, the time-dependent force vanishes and
the projectile rises under gravitational acceleration to a maximum height h above the end of
the barrel.
L
h
(a) How long does it take the projectile to reach the top end of the gun barrel? Please
express your answer in terms of b, L, and M.
(b) How fast is the projectile moving as it exits the barrel? Please express your answer in
terms of b, L, and M.
(c) What is the mass M of the projectile in terms of b, L, g, and h?
Answers: 3
Physics, 22.06.2019 09:40, wi8wuwj283jendjdudjd
When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great. d) about 10 times as great.
Answers: 1
Physics, 22.06.2019 14:30, mangowammy
What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?
Answers: 1
A projectile of mass M, initially at rest, is acted upon by a net force [including gravity] that
i...
Mathematics, 27.02.2020 17:55