Physics, 03.10.2021 14:00 taleiayarbough4544
Một xe máy đi với vận tốc 54 km/h bỗng người lái xe thấy cái hố trước mặt cách xe 50m người ấy phanh gấp và đến sát cái hố thì dừng lại
a) tính gia tốc của xe
b) tính gia tốc hãm phanh
Answers: 1
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On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?
Answers: 1
Physics, 23.06.2019 17:00
Asoccer ball of mass 0.43 kg is rolling with velocity < 0, 0, 1.8> m/s, when you kick it. your kick delivers an impulse of magnitude 2.7 nâ·s in the direction. the net force on the rolling ball, due to the air and the grass, is 0.22 n in the direction opposite to the direction of the ball's momentum. using a time step of 0.5 s, find the position of the ball at a time 1.5 s after you kick it, assuming that the ball is at the origin at the moment it is kicked. use the approximation . (express your answer in vector form.) < entry field with incorrect answer 12.97 , entry field with correct answer 00 , entry field with incorrect answer 2.7 > m
Answers: 3
Physics, 23.06.2019 18:00
Five examples total of events causing weathering and erosion ( explain)
Answers: 1
Một xe máy đi với vận tốc 54 km/h bỗng người lái xe thấy cái hố trước mặt cách xe 50m người ấy phanh...
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