If an object falling freely were somehow equipped with an odometer to measured t

Question

If an object falling freely were somehow equipped with an odometer to measured the distance it travels, then the amount of distance it travels each succeeding second would be A ball is dropped from rest from a tower and strikes the ground 5.7 seconds later. How tall is the tower? Neglect air resistance. Suppose you are on another planet and you want to measure its acceleration of gravity so you drop an object from rest. It hits the ground, traveling a distance of 0.8 m in 0.5 second. A 10-kilogram block with an initial velocity of 10 m/s slides 10 meters across a horizontal surface and comes to rest. It takes the block 2 seconds to stop. The stopping force acting on the block is about A ball is launched from ground level at 45m/s at an angle of 35degree above the horizontal does it go before it is at ground level again?

Explanation / Answer

part 6 )

B ) greater than the second before

the distance traveled each second increases due to the fact that the velocity is increasing .

part 7 )

s = vy*t -1/2gt^2

initial velocity = 0

s = 4.9 * (5.7)^2

s = 160 m

part 8 )

s = ut + 1/2at^2

u =0

0.8 = 1/2*a*(.5)^2

a = 6.4 ms/^2

part 9 )

v = u + at

v = 0

10/2 = -5 m/s^2

F = ma

F = 10*5 = 50 N

part 10 )

R = u^2sin(2theta)/g

R = 194 m

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