34)
Change in mechanical energy of projectile is
Answer is
35)
For the two blocks initial energy is and final energy is
Conserving energy of each block at the top and bottom ,
Answer They both will have the same speed.
DQuestion 34 1 pts A5 kg projectile is fired at an angle of 25° above the horizontal. Its initial velocity is 200 m/s a...
A 60.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 124 m/s from the top of a cliff 144 m above level ground, where the ground is taken to be y = 0. (a) What is the initial total mechanical energy of the projectile? (Give your answer to at least three significant figures.) (b) Suppose the projectile is traveling 87.9 m/s at its maximum height of y = 304 m. How much...
A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 128 m/s from the top of a cliff 160 m above level ground, where the ground is taken to be y = 0. (a) What is the initial total mechanical energy of the projectile? (Give your answer to at least three significant figures.) ____J (b) Suppose the projectile is traveling 90.7 m/s at its maximum height of y = 331 m. How...
A 42.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 134 m/s from the top of a cliff 134 m above level ground, where the ground is taken to be y = 0. (a) What is the initial total mechanical energy of the projectile? (Give your answer to at least three significant figures.) 432000 Correct: Your answer is correct. J (b) Suppose the projectile is traveling 95.0 m/s at its maximum height...
Projectile Motion: An object is fired into a projectile with an initial velocity of 250 m/s at an angle of 60° with respect to the horizontal. a) What is the maximum height it reaches? b) What is the maximum horizontal distance it reaches? c) What is the time of flight of the particle? d) What is its velocity as it reaches the ground? e) Locate the object after 6 seconds.
3. A5 g bullet a is fired with velocity v. = 500 m/s into a 1-kg wood block B suspended by a cord of length L=2 m. Find the maximum angle the pendulum reaches, 0, and the tension on the cord immediately after impact. (30 point) ө To B
Question 4 0/0.8 pts A projectile that is fired with an initial velocity of 118 m/s is inclined upward at an angle of 39. It lands at a point -34 m lower than the initial point. Calculate the time of flight
Question 4 0/0.8 pts A projectile that is fired with an initial velocity of 118 m/s is inclined upward at an angle of 39. It lands at a point -34 m lower than the initial point. Calculate the time of flight
A long, uniform rod of mass 20.00 kg is pivoted at its top end. It is lifted a small angle and let go. When it reaches the very bottom of its swing, it is moving with angular speed ?o , and it has collision with a block of mass 3.000 kg that was originally at rest on a frictionless surface. After the collision the rod is seen to continue spinning in the same direction at 17.66 rad/s. As a result...
17. A projectile of mass m is fired straight up from an initial height ho with an initial speod vo. The projectile rises to a maximum height of hesa and falls straight back down to the ground at zero height. What is the total work done by the force of gravity during this trajectory? Vo ho m. If a hole appears in 18. The water level in a city storagetower is at a height of 40 the tower at a...
1- A block slides along a frictionless surface at 2.4 m/s. A second 3.5-kg block, sliding at a faster 7.5 m/s, collides with the first from behind and sticks to it. The final velocity of the combined blocks is 4.6 m/s. What was the mass of the first block? 2-A 15 g ball of clay traveling west at 4 m/s collides with a 50 g ball of clay traveling 30° north of east at 3.5 m/s. What is the speed...