Rotational Kinetic Energy [Choose) Spring Energy [Choose Torque [Choose) Net force [ Choose ] Linear Position [Choose)
Posted: Mon May 16, 2022 3:10 pm
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Given two vectors: A = 3i+0j + 4k B = 0i + 3y + 4k a) The magnitude of Ais (Select) b) The magnitude of of Bis (Select ] c) The dot product of A and B(AB) is (Select] d) The angle between A and B is (Select) e) 6A - Bis Select ]
A child of weight 147N jumps on his bed mattress. As the child falls down, he touches the mattress with a velocity of 0.5 m/s and so the spring is compressed by 0.03 m. a) The magnitude of the force generated by the spring is [Select] b) The spring constant is Select] d The work done to compress the spring is Select] d) The velocity of the child when the spring is fully compressed is (Select) e) The velocity of the child when he is pushed back by the spring is Select)
-0 m/s A А 18 V-3m/s Vus2m/s Before Collision After Collision Disk A of mass ma-0.17 kg slides along the x-axis of a table with a constant velocity of V.,-0.30 m/s. Disk B has a mass mg-0.13 kg. and it is initially stationery (v8,1 =0 m/s). At some instant, Disk A collides with Disk B, and then Disk A deflects at 18° with the horizontal and continues sliding but at AY-0.20 m/s. The collision is elastic and causes Disk B to slide at a velocity VB. a) The total momentum before collision along the x-axis is kgm? b) The total momentum before collision along the y-axis is kgm?
Before Collision After Collision Disk A of mass ma-0.17 kg slides along the x-axis of a table with a constant velocity of VA -0.30 m/s Disk Bhas a mass mg-0.13 kg, and it is initially stationery (ve,1=0 m/s). At some instant, Disk A collid with Disk B, and then Disk A deflects at 18° with the horizontal and continues sliding but at VA -0.21 m/s. The collision is elastic and causes Disk B to slide at a velocity Vet- kgm? a) The total momentum before collision along the x-axis is kgm. b) The total momentum before collision along the y-axis is The total momentum after collision along the x-axis is d) The total momentum after collision along the y-axis is m/s. e) The magnitude of velocity of Disk B after collision is