Homework Answers
1. False. The object follows a projectile path, which is parabolic.
2. True. The horizontal velocity of the object is constant.
3. True. The travel time is based on the height of launch and acceleration due to gravity, and independent of launch speed.
4. False. The more the launch speed, more is the horizontal distance travelled.
You are experimenting with a cart on a track that can launch a ball straight up...
You are experimenting with a cart on a track that can launch a ball straight up into the air. (1) Suppose the cart is moving at 2.0 m/s along the horizontal track and the ball is launched to a height of 1 m above the level of the cart. How far away will the cart catch the ball? (2) Now you tilt the track to 10° and let the cart go from rest at the moment the ball is launched....
You are experimenting with a cart on a track that can launch a ball straight up...
You are experimenting with a cart on a track that can launch a ball straight up into the air. (1) Suppose the cart is moving at 2.0 m/s along the horizontal track and the ball is launched to a height of 1.0 m above the level of the cart. How far away will the cart catch the ball? (2) Now you tilt the track to 10° and let the cart go from rest at the moment the ball is launched....
A projectile is launched from a platform of height h and lands on the ground below....
A projectile is launched from a platform of height h and lands on the ground below. a) Find the launch angle that maximizes the horizontal range of the projectile. b) Now suppose the projectile is subject to a strong headwind such that it has a horizontal acceleration of 1.00 m/s2 , pointing against its motion. If it is launched at 30∘ above the horizontal with initial speed of 30 m/s, and the platform is 5.00 m tall, how far does...
A projectile is launched from a platform of height h and lands on the ground below....
A projectile is launched from a platform of height h and lands on the ground below. a) Find the launch angle that maximizes the horizontal range of the projectile. b) Now suppose the projectile is subject to a strong headwind such that it has a horizontal acceleration of 1.00 m/s2, pointing against its motion. If it is launched at 30∘ above the horizontal with initial speed of 30 m/s, and the platform is 5.00 m tall, how far does the...
EXPLORE A projectile is launched with a launch angle of 30° with respect to the horizontal...
EXPLORE A projectile is launched with a launch angle of 30° with respect to the horizontal direction and with an initial speed of 40 m/s. (A) How do the vertical and horizontal components of the projectile's velocity vary with time? (B) How long does it remain in flight? (C) For a given launch speed, what launch angle produces the longest time of flight? CONCEPTUALIZE Consider the projectile to be a point mass that starts with an initial velocity, upward and...
Can you show all steps to solve the question? Thank you 2. A solid uniform sphere...
Can you show all steps to solve the question? Thank
you
2. A solid uniform sphere and a uniform spherical shell, both having the same mass m and radius R, roll without slipping down a hill that rises at an angle ? above the horizontal. Both spheres start from rest at the same vertical height h 10.0 m. Given lem mR2 and sphere shelt S) () mR2. You may use energy (a) How fast is the solid sphere moving at...
Question 7 The table below gives the height of a rocket as a function o time,...
Question 7 The table below gives the height of a rocket as a function o time, h(t). h(m) o 66 164295 457 651 878 1138 1429 1753 2108 (s) 12 3 4 5 6 10 Suppose that a different rocket is launched exactly three times as fast. The height of the second rocket is given by h3o. How fast is the second rocket moving at the instant t-2 seconds? Do not enter units with your answer. Selected Answer: [None Given]...
A probe has been launched vertically from the surface of Mars. At time t 0, it has reached a height of y1,0 320 m, and is moving upward at vy10 80 m/s when its engines cut out. At the same moment...
A probe has been launched vertically from the surface of Mars. At time t 0, it has reached a height of y1,0 320 m, and is moving upward at vy10 80 m/s when its engines cut out. At the same moment, the mother ship is y20 1500 m from the Martian surface, moving down directly toward the probe at 25 m/s and slowing down at the rate of 0.80 m/s2. On the surface of Mars, the gravitational acceleration is gMars-3.72...
1. 2. Please answer both questions. A projectile is fired up into the air at a...
1. 2.
Please answer both questions.
A projectile is fired up into the air at a speed of 127 m/s at an angle of 38° relative to the horizontal. Ignore air drag A.) Determine the MAXIMUM HEIGHT (above where it was thrown) the projectile will reach X Dimensionally incorrect. Please check the type or dimension of your unit B.) Determine how LONG the projectile will be in the air. Assume it lands at the same height it was launched. C.)Assuming...
A 0.45 kg object rests on a frictionless horizontal surface, where it is attached to a...
A 0.45 kg object rests on a frictionless horizontal surface, where it is attached to a massless spring whose k-value equals 24.0 N/m. Let x be the displacement, where x = o is the equilibrium position and x > 0 when the spring is stretched. The object is pushed, and the spring compressed, until хі =-4.00 cm. It then is released from rest and undergoes simple harmonic motion. (a) What is the object's maximum speed (in m/s) after it is...
Can you show all steps to solve the question? Thank
you
2. A solid uniform sphere and a uniform spherical shell, both having the same mass m and radius R, roll without slipping down a hill that rises at an angle ? above the horizontal. Both spheres start from rest at the same vertical height h 10.0 m. Given lem mR2 and sphere shelt S) () mR2. You may use energy (a) How fast is the solid sphere moving at...
Question 7 The table below gives the height of a rocket as a function o time, h(t). h(m) o 66 164295 457 651 878 1138 1429 1753 2108 (s) 12 3 4 5 6 10 Suppose that a different rocket is launched exactly three times as fast. The height of the second rocket is given by h3o. How fast is the second rocket moving at the instant t-2 seconds? Do not enter units with your answer. Selected Answer: [None Given]...
A probe has been launched vertically from the surface of Mars. At time t 0, it has reached a height of y1,0 320 m, and is moving upward at vy10 80 m/s when its engines cut out. At the same moment, the mother ship is y20 1500 m from the Martian surface, moving down directly toward the probe at 25 m/s and slowing down at the rate of 0.80 m/s2. On the surface of Mars, the gravitational acceleration is gMars-3.72...
1. 2.
Please answer both questions.
A projectile is fired up into the air at a speed of 127 m/s at an angle of 38° relative to the horizontal. Ignore air drag A.) Determine the MAXIMUM HEIGHT (above where it was thrown) the projectile will reach X Dimensionally incorrect. Please check the type or dimension of your unit B.) Determine how LONG the projectile will be in the air. Assume it lands at the same height it was launched. C.)Assuming...
A 0.45 kg object rests on a frictionless horizontal surface, where it is attached to a massless spring whose k-value equals 24.0 N/m. Let x be the displacement, where x = o is the equilibrium position and x > 0 when the spring is stretched. The object is pushed, and the spring compressed, until хі =-4.00 cm. It then is released from rest and undergoes simple harmonic motion. (a) What is the object's maximum speed (in m/s) after it is...
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