3 3) A heavy penguin (of mass 12 kg) and a light penguin (of mass 6...
Question 3, thanks !
the mass move when no longer in o 3. A 1750 kg car moving to the right at 1.5 m/s collides with a 1450 kg car moving to the left at 1.1 m/s. Afterwards the heavier car is moving to the right with speed 0.25 m/s. What is the speed of the lighter car after the collision? It has a 50 g mass at the left end and a 70 g in the moment of
INITIAL: FINAL: - - - A white billiard ball with mass mw - 1.54 kg is moving directly to the right with a speed of v- 3.31 m/s and collides elastically with a black billiard ball with the same mass m - 1.54 kg that is initially at rest. The two collide elastically and the white ball ends up moving at an angle above the horizontal of 0 - 60' and the black ball ends up moving at an angle...
Two basketballs, one regulation and one heavy ball (regulation basketball has mass of 0.624 kg while the heavy ball has mass of 1.359 kg are tied to each other by a light string (light string means you need not consider the mass of the string). The regulation ball is above the heavy ball and a player holds the regulation ball in his palm. Draw the free body diagram(s) appropriate for the situation and then calculate the force that the player...
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1 If a 71-kg astronaut at rest in space throws a ball with mass 0.61 kg at a speed of 12 mph. What happens to the astronaut as a result? 4 A moving ball collides elastically with another ball that is twice as heavy and is initially at rest. What happens to the lighter ball as a result of the collision? (a) She picks up some of the movement of the ball, causing her to move forward....
As shown in Figure 3(a), a wooden block B with mass mg 2.4 kg on a rough inclined plane is connected to a massless spring (k 160 N/m) by a massless cord passing over a pulley P of radius R 0.25 m and mass M, 0.60 kg. The angle of the inclined plane is 0 37 and the coefficients of static and kinetic frictions are g 0.35 and A 0.30 respectively The frictional force at the axle of the pulley...
Question 3 A -9.80 nC charge of mass 4.50x10-6 kg is released from rest 1.90 mm above a very large plane of positive charge. The charge accelerates toward the plane and collides with a speed of 1.50 m/s. What is the surface charge density of the plane? O 1.09x10-7 c/m2 3.21x10-6 C/m2 4.81×10-6 C/m2 O 2.41x10-6 C/m2
Q2. Two objects of unequal masses, M-Skg and m-2 kg are connected by a very light cord passing over an ideal pulley of negligible mass. When released, the system accelerates with acceleration a and friction is negligible. The tension of the string is T. a. Draw one Free Body Diagram for cach object. Draw themn above diagram 5 points b. For each object and each direction, write down yF- points c. Solve the set of equations and find the acceleration...
1-4
using Work-Energy Theorem/KE and PE
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not 1. An object of mass 0.5kg is projected from ground at 40m/s. Find the work done by gravity on the object, when it is at (a) 10m above the ground -49 Joules (b) 15m above the ground.- 73.5 Joules (c) Find the potential energy of the object in (a) and (b) relative to the ground. PE-mgh 49 J/73.55 2. A block of is sliding down a slope as shown in the...
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Problem# 5: A box with mass 12.0 kg moves on a ramp that is inclined at an angle of 60.0 above the horizontal. The coefficient of kinetic friction between the box and the ramp surface is u-0.380, a) Draw a free body diagram b) Express all required equations c) Calculate the magnitude of the acceleration of the box if you push on the box with a constant force F- 150.0 N that is parallel to the...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...