A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial...
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 much work has been done on the projectile by air friction? _________J
(c) What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up? _______m/s
Homework Answers
Add Answer to:
A 44.0-kg projectile is fired at an angle of 30.0° above the
horizontal with an initial...
A 60.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial...
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 42.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial...
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...
A daredevil on a motorcycle leaves the speed of a ramp with a speed of 33.5...
A daredevil on a motorcycle leaves the speed of a ramp with a speed of 33.5 m/s as in the figure below. If his speed is 31.8 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance, m A 44.0-kg projectile is fired at an angle of 30.0 degree above the horizontal with an initial speed of 1 40 times 102 m/s from the top of a cliff...
A 2 kg rock is fired at an angle of 60 degree above the horizontal with...
A 2 kg rock is fired at an angle of 60 degree above the horizontal with an initial speed 20 m/s by someone standing on the edge of a cliff 40 m above level ground. The initial position of the rock is taken to be y = 0. Air resistance is not neglected in this situation! (a) The initial mechanical energy of the rock is? (b) The work being done on the rock by the force of gravity after being...
A projectile is fired at an angle of 60 degrees above the horizontal with an initial...
A projectile is fired at an angle of 60 degrees above the horizontal with an initial speed of 30.0 m/s. How long does it take the projectile to reach the highest point in its trajectory?
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...
DQuestion 34 1 pts A5 kg projectile is fired at an angle of 25° above the horizontal. Its initial velocity is 200 m/s and just before it hits the ground its velocity is 150 m/s. What is the change in the mechanical energy of the projectile? O +19,000J O-19,000 J +44,000J O -44,000J 0 Question 35 1 pts Two blocks are released from the toop of a tower One falls straight down while the other slides down a frictionless ramp....
A projectile is fired at 37°above the horizontal with an initial speed of 65.0 m/s from...
A projectile is fired at 37°above the horizontal with an initial speed of 65.0 m/s from the top of a 50.0m tall cliff. Find its range
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the same angle but at a speed of 2 g. Use this for Questions # 1-7. Draw the initial velocity vectors for both projectile A and projectile B Remember that the length of your arrows is important 1. Compare the initial horizontal and vertical velocities of projectiles A and B. Be specilic. Explain your answers 2. 3. Compare...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the sar but at a speed of 2%. Use this for Questions #1-7. angle Draw the initial velocity vectors for both projectile A and projectile B. Remember that the length of your arrows is important. 1. 2. Compare the initial horizorntal and vertical velocities of projectiles A and B. Be specific. Explain your answers. 3. Compare the horizontal...
. A 3 kg projectile is fired upward from the top of a 150 m cliff...
. A 3 kg projectile is fired upward from the top of a 150 m cliff with an initial speed of 112 m/s.What will be its kinetic energy 93 m above the ground? Assume no friction.
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 daredevil on a motorcycle leaves the speed of a ramp with a speed of 33.5 m/s as in the figure below. If his speed is 31.8 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance, m A 44.0-kg projectile is fired at an angle of 30.0 degree above the horizontal with an initial speed of 1 40 times 102 m/s from the top of a cliff...
DQuestion 34 1 pts A5 kg projectile is fired at an angle of 25° above the horizontal. Its initial velocity is 200 m/s and just before it hits the ground its velocity is 150 m/s. What is the change in the mechanical energy of the projectile? O +19,000J O-19,000 J +44,000J O -44,000J 0 Question 35 1 pts Two blocks are released from the toop of a tower One falls straight down while the other slides down a frictionless ramp....
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the same angle but at a speed of 2 g. Use this for Questions # 1-7. Draw the initial velocity vectors for both projectile A and projectile B Remember that the length of your arrows is important 1. Compare the initial horizontal and vertical velocities of projectiles A and B. Be specilic. Explain your answers 2. 3. Compare...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the sar but at a speed of 2%. Use this for Questions #1-7. angle Draw the initial velocity vectors for both projectile A and projectile B. Remember that the length of your arrows is important. 1. 2. Compare the initial horizorntal and vertical velocities of projectiles A and B. Be specific. Explain your answers. 3. Compare the horizontal...
. A 3 kg projectile is fired upward from the top of a 150 m cliff with an initial speed of 112 m/s.What will be its kinetic energy 93 m above the ground? Assume no friction.
Most questions answered within 3 hours.
-
"The Ramsey family has total assets of $1,000,000 and total
liabilities of $700,000. Included in their...
asked 1 hour ago -
The following table gives information on the amount of sugar (in
grams) and the calorie count...
asked 2 hours ago -
A car travels at an average speed of 56 mph for 15 hours. What
was the...
asked 2 hours ago -
Exercise on Mirror, Mirror on the Wall/lnitial Self
Evaluation
Write an Initial Self Evaluation paper that...
asked 3 hours ago -
Implementation of policy recommendations is often a
problem. What do you see as the major barriers...
asked 4 hours ago -
23- The consideration needed to support a contract
must:
a. Flow to the promise AND have...
asked 6 hours ago -
1. What is the main causal factor of Border line personality
disorder? Research has also found...
asked 8 hours ago -
The National Institute of Standards and Technology (NIST)
supplies "standard materials" whose physical properties are
supposed...
asked 8 hours ago -
Alpha Centauri A and B are Sun-like stars, and together they
form the binary star Alpha...
asked 8 hours ago -
What is the pH of a 0.200 M solution of sulfurous acid? Given:
Ka1 = 1.70×10–2,...
asked 9 hours ago -
Sociologists have conducted much interesting research on gender
stereotypes in American society. A curious aspect of...
asked 9 hours ago -
1. Based on your results, calculate how many kilograms of plant
material you would need to...
asked 9 hours ago