[" Question 2: "],[" A particle is projected up with an initial velocity of "],[80" ft/sec.The ball will be at a height of "96ft" from the "],[" ground after "]

A ball is thrown vertically upward from the top of a building 96feet tall with an initial velocity of 80feet per second. The distance S (in feet )of the ball from the ground, after t seconds is S = 96 + 80t − 16t^(2) . After how many seconds does the ball strike the ground.

A particle A is projected from the ground with an initial velocity of 10m//s at an angle of 60^(@) with horizontal. From what height should an another particle B be projected horizontally with velocity 5m//s so that both the particles collide in ground at point C if both are projected simultaneously g=10 m//s^(2) .

A particle A is projected from the ground with an initial velocity of 10m//s at an angle of 60^(@) with horizontal. From what height should an another particle B be projected horizontally with velocity 5m//s so that both the particles collide in ground at point C if both are projected simultaneously g=10 m//s^(2) .

A particle is projected from the ground with some initial velocity making an angle of 45^(@) with the horizontal. It reaches a height of 7.5 m above the ground while it travels a horzontal distance of 10 m from the point of projection . Find the initial speed of projection ( g = 10 m//s^(2) ) .

A stone is projected vertically upwards with an intial velocity 112 ft/sec and moves such that s=112t-16t^2 where s is the distance from the starting point and t is the time. The greatest height reached by the stone is

Figure shown V_(y)-t graph of a particle projected from the ground. Then its height at t=2 sec will be