Physics Lab 7

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An angry rhino with a mass of 2500 kg charges directly toward you with a speed of 4.70 m/s. Before you start running, as a distraction, you throw a 0.180 kg rubber ball directly at the rhino with a speed of 7.15 m/s. Determine the speed of the ball (in m/s) after it bounces back elastically toward you. m/s Additional Materials O Reading

Question Number: 93 Question Id: 7005954973 Is Question Mandatory : No Calculator : None Response Time: N.A Think Time: N.A Minimum Instruction Time: 0 A ball of mass 2m and a system of two balls with equal masses m connected by a massless spring, are placed on a smooth horizontal surface (see figure below). Initially, the ball of mass 2m moves along the line passing through the centres of all the balls and the spring, whereas the system of two balls is at rest. 2m m m Assuming that the collision between the individual balls is perfectly elastic, the ratio of vibrational energy stored in the system of two connected balls to the initial kinetic energy of the ball of mass 2m is A) 1 B WINN

Subject: physics

a. Indicate the direction of the  momentum of each ball after collision b.      Were the two balls both moving or can one be initially at rest before collision? To answer this, choose sample initial velocities representing both cases  c.       Solve each situation using the formulas for elastic collision d.      Analyze your answer in (b) by comparing your results in (c)

Please fix the following: How points A and B are helpful? Also, the hypothesis in the conclusion is not fully addressed.

When doing the math for a collision, how would you indicate the difference between a head-on collision and a collision where two objects were moving in the same direction? Your answer: One of the masses would be negative in the head-on collision. One of the masses would be negative when the objects are moving in the same direction. One of the velocities would be negative in the head-on collision. One of the velocities would be negative when the objects are moving in the same direction. O There would be no difference.

A 0.060-kg tennis ball, moving with a speed of 5.12 m/s, has a head-on collision with a 0.090-kg ball initially moving in the same direction at a speed of 3.28 m/s. Assume that the collision is perfectly elastic. Part A Determine the speed of the 0.060-kg ball after the collision Express your answer to two significant figures and include the appropriate units. Uj Submit Value Request Answer Units ?

Miguel, the 70.0 kg bullfighter, runs toward an angry bull at a speed of 4.20 m/s. The 550. kg bull charges toward Migeul at 12.0 m/s and Miguel must jump on the bull's back at the last minute to avoid being run over.  a. Hypothesize what type of collision this is? Explain your reasoning and how you would mathematically prove the type of collision.

A 0.060-kgkg tennis ball, moving with a speed of 5.80 m/sm/s , has a head-on collision with a 0.090-kgkg ball initially moving in the same direction at a speed of 3.48 m/sm/s . Assume that the collision is perfectly elastic.     Part A Determine the speed of the 0.060-kgkg ball after the collision. Express your answer to two significant figures and include the appropriate units.

A ball of mass 0.472 kg moving east (+x direction) with a speed of 3.80 m/sm/s collides head-on with a 0.236 kg ball at rest. Assume that the collision is perfectly elastic. Part A What is the speed of the 0.472-kg ball after the collision? Express your answer to three significant figures and include the appropriate units. v1=_____________   Part B What is the speed of the 0.236-kg ball after the collision? Express your answer to three significant figures and include the appropriate units. v1=______________

The three homogeneous rods shown in the figure below are welded together at O to form a rigid body. The length of A, B,and C are 1.2 m, 2.4 m, and 3.3 m respectively. The mass of A, B, and C are 1 kg, 2 kg, and 3 kg. Find I in kg.m2. C- A B y Figure is from "Engineering Mechanic An Introduction to Dynamics", McGill and King.

A 2 kg block is moving at a speed of 10 m/s and makes a perfectly elastic collision with a second block of mass MM, which is initially at rest. After the collision, the 2 kg block bounces straight back at 3 m/s Part A Determine the mass MM of the second block. Express your answer with the appropriate units. Part B Determine the speed of the second block after the collision. Express your answer with the appropriate units.

A ball of mass 0.584 kg moving east (+x direction) with a speed of 3.78 m/s collides head-on with a 0.292 kg ball at rest. Assume that the collision is perfectly elastic. Part A What is be the speed of the 0.584-kg ball after the collision? Express your answer to three significant figures and include the appropriate units. V1 = 1.26 Submit m S Previous Answers

Direction: Read and analyze the given problems. Solve each problem by showing your solution. Box the final answer (maximum of 5 significant figures). Note: Indicate the corresponding unit. A 5.00-g bullet is fired into a 500-g block of wood suspended as a ballistic pendulum. the combined mass swings up to a height of 8.00 cm. What was the magnitude of the momentum of the combined mass immediately after the collision?

A 110-kgkg tackler moving at a speed of 2.7 m/sm/s meets head-on (and holds on to) an 86-kgkg halfback moving at a speed of 5.0 m/sm/s.     Part A What will be their mutual speed immediately after the collision? Express your answer to two significant figures and include the appropriate units.

Pls, put the complete solution and box the final answer.

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What would be the type of collision of the image below? a.) Elastic b.) Inelastic c.) Completely Inelastic d.) No collision Momentum & Energy: Elastic and Inelastic Collisions Animation Speed Run slower faster Pause Elasticity (enter a number between 0 and 1)0 Reset totally inelastic Vud Vulue VCOM Initial KE red = 250 J Initial KE blue = 250 J Show Energy & Momentum Values Initial p red = 50 kgmis Initial p blue = -50 komis Velocity of red box = 10 mis Velocity of blue box-10 mis COM Pred Pelue (+) Positive Direction Show Center of Mass Initial velocity of red box (m/s) =10 Initial velocity of blue bax (m/s) =-10 Relative velocity initial = 20 (towards) Mass of red box (kg) =5 Show Relative Velocity Mass of blue box (kg) =5 la

A 20 g ball of clay traveling east at 2.0 m/s collides with a 30 g ball of clay traveling 30° south of west at 1.0 m/s. Part A What is the speed of the resulting 50 g blob of clay? Express your answer in meters per second. 5 ΑΣΦ V= ? m/s

A 0.060-kg tennis ball, moving with a speed of 4.4 m/s, has a head-on collision with a 9.5x10-2-kg ball initially moving in the same direction at a speed of 3.1 m/s. Part A Assuming a perfectly elastic collision, determine the speed of each ball after the collision. Enter your answers numerically separated by a comma. Express your answers using two significant figures. ? tennis ball' 'bal = m/s Submit Request Answer Part B Determine the direction of tennis ball after the collision. O The tennis ball moves in the direction of its initial motion. O The tennis ball moves in opposite direction. Submit Previous Answers v Correct Part C Determine the direction of 9.5x10-2-kg ball after the collision. The ball moves in the direction of its initial motion. The ball moves in opposite direction. DrevieueAnewere

The three homogeneous rods shown in the figure below are welded together at O to form a rigid body. The length of A, B, and C are 1.4 m, 2.2 m, and 3.3 m respectively. The mass of A, B, and C'are 1 kg, 2 kg, and 3 kg. Find I? in kg.m2. C- A B y Figure is from "Engineering Mechanic An Introduction to Dynamics", McGill and King.

A 0.300-kg ice puck, moving east with a speed of 5.44 m/s, has a head-on collision with a 0.990-kg puck initially at rest. Assume that the collision is perfectly elastic. Part A What is the speed of the 0.300-kg puck after the collision? Express your answer to three significant figures and include the appropriate units. Submit Part B THA Submit Value Part C to the east to the west Request Answer What is the direction of the velocity of the 0.300-kg puck after the collision? 12 ✔ Request Answer Units What is the speed of the 0.990-kg puck after the collision? Express your answer to three significant figures and include the appropriate units. ? O P 4

Block A with a mass of 2kg is moving to the right at 5m/s. It collides with block B with a mass of 3kg moving at 1m/s to the left. A. What is the total momentum before collision? magnitude: direction: B. What is the total momentum after collision? magnitude: direction: C. If collision is perfectly inelastic, what is their velocity after collision? magnitude: direction: D. If block A stops moving, what is the velocity of block B? magnitude: direction: E. What is the coefficient of restitution if block A stops moving after collision with block B?

A 41 g marble moving at 2.0 m/s strikes a 23 g marble at rest. Assume the collision is perfectly elastic and the marbles collide head-on. Part A What is the speed of the first marble immediately after the collision? Express your answer with the appropriate units.

1. In determining the magnitude of the initial velocity of the ballistic pendulum projectile, what conservation laws are involved and in which parts of the procedure? 2. Why is it justified to say that the momentum in the horizontal direction is conserved over the collision interval? Is momentum conserved before and after the collision? Explain. 3. Why are the heights measured to the center of mass of the pendulum-ball system? 7. For a given initial velocity, how does the range of a projectile vary with the angle of projection 0?

Use the worked example above to help you solve this problem. Two billiard balls of identical mass move toward each other as shown in the figure. Assume that the collision between them is perfectly elastic. If the initial velocities of the balls are v1i = +25.2 cm/s and v2i = −20.3 cm/s, what are the velocities of the balls after the collision? Assume friction and rotation are unimportant. (Indicate the direction with the sign of your answer.) v1f = v2f =