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A 1.6 2-oz golf ball is hit with a golf club and leaves it with a velocity of 100 mi/h. We assume that for
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Vector Mechanics For Engineers
- A hockey puck is traveling to the left with a velocity of v₁ = 12 m/s when it is struck by a hockey stick and given a velocity of v2 = 24 m/s as shown. The puck has a mass of 0.2 kg. (Figure 1) Figure IM 40° 1 of 1 > Part A Determine the magnitude of the net impulse exerted by the hockey stick on the puck. Express your answer to three significant figures and include the appropriate units. I = Value Submit μA Provide Feedback Request Answer Units ? Next >arrow_forwardClarence was driving his car when he drove into a busy parking lot last Monday morning. Unaware that another vehicle was stopped in her lane 50 feet ahead, Clarence accidentally rear-ended the other vehicle. Clarence's 1400-kg car was moving at 12 m/s and stopped in 0.16 seconds. Determine the impulse experienced by Clarence's cararrow_forwardA bullet weighing 30 grams moving with a velocity of 100 m/sec hits a 5 kg bob of a simple pendulum horizontally. Determine the maximum angle through which the pendulum string 0.5 m long may swing if The bullet get embedded in bob. M, -30 gm --D- Mg-5 kg ANS = deg ( one decimal place)arrow_forward
- Two cars collide at an intersection. Car A, with a mass of 2027 kg, is going from west to east, while car B, of mass 1535 kg, is going from north to south at 18 m/s. As a result of this collision, the two cars stick together and they moved at an angle of 65° south of east from the point of impact. How fast (in m/s) were the entangled cars moving just after the collision? North |B West - East Southarrow_forwarda 322-lb body moves under the action of a force given by the relation P = (10t-t^2)î, where P is in pounds and t is in seconds. How far will the body move from rest before it starts to reverse its direction? answer=140.8 ftarrow_forwardA 1400-kg automobile starts from rest and travels 400 m during a performance test. The motion of the automobile is defined by the relation x= 4000 ln(cosh 0.03t), where x and t are expressed in meters and seconds, respectively. The magnitude of the aerodynamic drag is D = 0.35v2 , where D and v are expressed in newtons and m/s, respectively. Determine the power dissipated by the aerodynamic drag when (a) t= 10 s, (b) t= 15 s.arrow_forward
- Q2: Sphere A collides with B as shown. If the coefficient of restitution is e = 0.5, determine the velocities of the two balls after impact if the velocities and masses of sphere A&B before impact are (ma= 8 kg, mg = 2 kg, VA= 2.5 m/sec, vB= 14 m/sec) respectively. m/s kg 30 20° kg m2 m1 45° A VA = m/sarrow_forwardM N·m v 0.5 m Each ball has a negligible size and their respective mass are 9-kg and 3-kg. Each ball is attached to the end of a rod whose mass may be neglected. If the rod is subjected to a torque M=t²+2 N.m, where t is in seconds, determine the speed of each ball when t=6. The initial speed of each ball at t=0s is 9 m/s.arrow_forwardA 1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. The spring has an undeformed length of 5 in. and a constant k=22 lb/ft. Knowing that the collar is released from being held at A determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through B. A 5 in. 7 in. |Barrow_forward
- 7900 kg RAIL INES 6800 kg PROBLEM 12.11 A tractor-trailer is traveling at 90 km/h when the driver applies his brakes. Knowing that the braking forces of the tractor and the trailer are 16 kN and 60 kN, respectively, determine (a) the distance traveled by the tractor- trailer before it comes to a stop, (b) the horizontal component of the force in the hitch between the tractor and the trailer while they are slowing down. x-xo= 60.4 m FH = 19.16 kNarrow_forwardA spring is used to stop a 50-kg package which is moving down a 20° incline. The spring has a constant k = 30 kN/m and is held by cables so that it is initially compressed 50 mm. Knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest. 2 m/s -50 kg Cable 8 m 20° m. The maximum additional deformation of the spring in bringing the package to rest isarrow_forwardQ.1 A 1.0 kg collar attached to a spring and slides without friction along a circular rod which lies in a vertical plane. The spring has a constant k=250N/m and is un-deformed when collar is at B. 1 kg Knowing that the collar passes through point D with a speed of 3.0 m/s, determine: www B D a) The speed of collar as it passes through C. b) The speed of collar as it passes through B. c) The Normal force on the collar at point C 300 mm 125 mm d) The normal force on the collar at point Barrow_forward
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