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A bullet is fired vertically into the air from the top of building and reaches a height of 1600m. It then falls to the ground below.The total time of flight is 38.0 s.
i) Determine the speed at which the bullet leaves the gun
ii) Determine from what height above the ground is the bullet fired
Determine the speed of the bullet when it hits the ground
Sketch a velocity versus time graph for the motion of the bullet
A mass of 60kg supported by a chain 13m long, is pulled a perpendicular distance of 5m from the original line of support. Calculate the horizontal force required?
Distinguish between Interference and polarization of light.
In the following figure, the particles have charges q1 = q2 = 100 nC and q3 =
− q4 = 200 nC, distance a = 5 cm. Find the electrostatic force on charge 4 in unit-
vector notation and magnitude-angle notation.
15. When a wave hits a material interface , it can be absorbed , reflected or transmitted by the second material . describe what happens in each of these cases ?
–12.0 × 10−9 C?
