Aparticle is projected at an angle of 45 degrees and a velocity of 60 m/s, and taking gravity 9.81 ms, 1. find the equation for the particle for horizontal displacement. 2. find the initial displacement of the vertical motion. 3. find the equation for the particle for vertical displacement. 4. find the time taken to reach the ground. 5. find the horizontal distance that the particle travels. 6. find the maximum height of the particle. 7.find the equation of the trajectory. 8. find the height of the particle when the horizontal distance is 10 m. 9. find the horizontal distance when the height of the particle is 50 m.
Is there any opitions? if you have the periodic table, the noble gases are 8a family, the halogen are the 7a family, and the nonmetal are carbon, nitrogen, phosphorus, oxygen, sulfur, selenium, fluorine, chlorine, bromine, iodine and astatine.
Answer from: Quest
I’m not sure about this question
Answer from: Quest
Answer(a) the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other
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