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Problem 4 A car of mass m is traveling at a slow velocity vo If it...
0. A car has a mass of 2,000 kg. It is known that the velocity is...
0. A car has a mass of 2,000 kg. It is known that the velocity is 20 m/s when the acceleration is 3 m/s. If drag resistance on the car due to wind is Fp-(0.2v) N, where v is the velocity.in m/s. The engine efficiency is 0.75. Determine the power supplied to the engine at this instant. The friction can be ignored. (15 points) D F V FD=0.2.20 FD=80 w=2000.9.3) 1962ON 2 Figure 5. Problem 6 2000.3 (=zon's = 3...
1. A car traveling at a speed of vo = 52 m/s stops smoothly (that is,...
1. A car traveling at a speed of vo = 52 m/s stops smoothly (that is, its deceleration is constant) over a distance of d = 147 m. After the car has gone 1/3 of the stopping distance, what is its speed? v1/3 = 2. An athlete sprinter 50m in 9.3 seconds, and then walks slowly back to the starting line in total time of 58 seconds. (Assume he runs in the positive direction.) What is his average walking velocity? vav...
Time (s) Problem 4 (16 pts) A sailing ship of mass, m, is initially at rest,...
Time (s) Problem 4 (16 pts) A sailing ship of mass, m, is initially at rest, i.e. V(O) strong wind arises of magnitude and keep push the ship. 0. At time Vo = 40m/s Assume that the force of the wind on the sails in the direction of travel is given by Fw(t) = Bw [V - v(t)] Assume that the viscous drag of the water on the ship is given by a. (4 pts) Formulate a differential equation that...
3. A body of mass m is thrown vertically up with an initial velocity vo. The...
3. A body of mass m is thrown vertically up with an initial velocity vo. The body encounters an air resistance proportional to its velocity and experiences a constant gravitational acceleration of g. Express all your answers to parts (a) and (b) of this question in symbolic forms. (a) (5 marks) Write down an equation that describes the velocity as a function of time. (b) (5 marks) Calculate the time at which the body reaches its maximum height.
Problem 6 An electron with speed vo 2.37x106 m/s is traveling parallel to and along the...
Problem 6 An electron with speed vo 2.37x106 m/s is traveling parallel to and along the same direction as an electric field of magnitudeE7.19x103 N/C. (a) How far will the electron travel before it stops? Submit Answer Tries 0/6 (b) How much time will elapse before it returns to its starting point?
Problem 3: Disk and stick collision A disk of mass m traveling with a velocity v1...
Problem 3: Disk and stick collision A disk of mass m traveling with a velocity v1 strikes a stick of mass M and length L that is lying flat on frictionless ice as shown in the overhead view in the figure. The disk strikes at the endpoint of the stick, at a distance r from the stick's center. Assume the collision is elastic and the disk does not deviate from its original line of motion. Analyze the system before and after...
A satellite of mass m is traveling at speed vo in a circular orbit of radius...
A satellite of mass m is traveling at speed vo in a circular orbit of radius ro under the gravitational force of a fixed mass M at point O. At a certain point Q in the orbit (see the figure below) the direction of motion of the satellite is suddenly changed by an angle α without any change in the magnitude of the velocity. As a result the satellite goes into an elliptic orbit. Its distance of the closest approach...
Assume that a softball is thrown straight up with an initial velocity: v=vo experiences a drag...
Assume that a softball is thrown straight up with an initial velocity: v=vo experiences a drag force due to air resistance given by: Farag = - bv a. Use F = ma to show that the appropriate differential equation is given by: mat= -mg - kmy [where k = 1 b. Show by direct substitution that: v(t) = -9 + [kvote-kt sat isfies the differential equation. C. Assuming the ball is thrown straight up with velocity v = vo, find...
HELP PLEASE! Problem 6 An electron with speed vo-638×106 m/s įs traveling parallel to and along...
HELP PLEASE!
Problem 6 An electron with speed vo-638×106 m/s įs traveling parallel to and along the same direction as an electric field of magnitude E = 393x103 NC (a) How far will the electron travel before it stops? Submit Answer Tries 0/6 b) How much time will elapse before it returns to its starting point?
Chapter 09, Problem 013 A shell is shot with an initial velocity VO of 17 m/s,...
Chapter 09, Problem 013 A shell is shot with an initial velocity VO of 17 m/s, at an angle of 0o 51 with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass (see the figure). One fragment, whose speed immediately after the explosion is zero, falls vertically. How far from the gun does the other fragment land, assuming that the terrain is level and that air drag is negligible? Exploion the
0. A car has a mass of 2,000 kg. It is known that the velocity is 20 m/s when the acceleration is 3 m/s. If drag resistance on the car due to wind is Fp-(0.2v) N, where v is the velocity.in m/s. The engine efficiency is 0.75. Determine the power supplied to the engine at this instant. The friction can be ignored. (15 points) D F V FD=0.2.20 FD=80 w=2000.9.3) 1962ON 2 Figure 5. Problem 6 2000.3 (=zon's = 3...
Time (s) Problem 4 (16 pts) A sailing ship of mass, m, is initially at rest, i.e. V(O) strong wind arises of magnitude and keep push the ship. 0. At time Vo = 40m/s Assume that the force of the wind on the sails in the direction of travel is given by Fw(t) = Bw [V - v(t)] Assume that the viscous drag of the water on the ship is given by a. (4 pts) Formulate a differential equation that...
3. A body of mass m is thrown vertically up with an initial velocity vo. The body encounters an air resistance proportional to its velocity and experiences a constant gravitational acceleration of g. Express all your answers to parts (a) and (b) of this question in symbolic forms. (a) (5 marks) Write down an equation that describes the velocity as a function of time. (b) (5 marks) Calculate the time at which the body reaches its maximum height.
Problem 6 An electron with speed vo 2.37x106 m/s is traveling parallel to and along the same direction as an electric field of magnitudeE7.19x103 N/C. (a) How far will the electron travel before it stops? Submit Answer Tries 0/6 (b) How much time will elapse before it returns to its starting point?
Problem 3: Disk and stick collision A disk of mass m traveling with a velocity v1 strikes a stick of mass M and length L that is lying flat on frictionless ice as shown in the overhead view in the figure. The disk strikes at the endpoint of the stick, at a distance r from the stick's center. Assume the collision is elastic and the disk does not deviate from its original line of motion. Analyze the system before and after...
A satellite of mass m is traveling at speed vo in a circular orbit of radius ro under the gravitational force of a fixed mass M at point O. At a certain point Q in the orbit (see the figure below) the direction of motion of the satellite is suddenly changed by an angle α without any change in the magnitude of the velocity. As a result the satellite goes into an elliptic orbit. Its distance of the closest approach...
Assume that a softball is thrown straight up with an initial velocity: v=vo experiences a drag force due to air resistance given by: Farag = - bv a. Use F = ma to show that the appropriate differential equation is given by: mat= -mg - kmy [where k = 1 b. Show by direct substitution that: v(t) = -9 + [kvote-kt sat isfies the differential equation. C. Assuming the ball is thrown straight up with velocity v = vo, find...
HELP PLEASE!
Problem 6 An electron with speed vo-638×106 m/s įs traveling parallel to and along the same direction as an electric field of magnitude E = 393x103 NC (a) How far will the electron travel before it stops? Submit Answer Tries 0/6 b) How much time will elapse before it returns to its starting point?
Chapter 09, Problem 013 A shell is shot with an initial velocity VO of 17 m/s, at an angle of 0o 51 with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass (see the figure). One fragment, whose speed immediately after the explosion is zero, falls vertically. How far from the gun does the other fragment land, assuming that the terrain is level and that air drag is negligible? Exploion the
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