1. What is (direction and magnitude) the acceleration of anyprojectile on Earth?
ID: 1736111 • Letter: 1
Question
1. What is (direction and magnitude) the acceleration of anyprojectile on Earth?2. List all the possible forces that can act on a fallingobject. Explain when each force is importnant.
3. Two objects are thrown from a height of 1 meter: onestraight up at 10 m/s and one straight down at 10 m/s. Which onehas a greater velocity when it hits the ground?
2. List all the possible forces that can act on a fallingobject. Explain when each force is importnant.
3. Two objects are thrown from a height of 1 meter: onestraight up at 10 m/s and one straight down at 10 m/s. Which onehas a greater velocity when it hits the ground?
Explanation / Answer
PART 1 accleration of any projectile on earth is due to accleration due togravity.IT has magnitude of aprox. 9.8 m/s2 anddirection is always downwards. PART 2 forces acting on a free falling object are 1.force of gravity 2.air resistance PART 3 velocity of the object thrown downwards when it hit theground=v v2=u2+2*g*h v2=102+2*9.8*1 v=10.94 m/s let the velocity of the object thrown upwards when it hit theground=V max height reavh by the object=h v2=u2+2*g*h 0=102+2*9.8*h h=5.1 m H=1+5.1=6.1 V2=u2+2*g*H V2=0+2*9.8*6.1 V=10.94 velocity of both the objects are same when they hit theground
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