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A hovercraft passes point A moving west with a speed of 15m/seconds. The hovercraft begins to accelerate at a steady rate of 2m/sec2 east. How long is it before the hovercraft passes point A moving east and with what speed it will be moving as it does so?
Suppose you decide to travel to a star 65 light-years away with a speed that tells you the distance is only 25 light-years. How many years would it take to make the trip?
Suppose you decide to travel to a star 65 light-years away with a speed that tells you the distance is only 25 light-years. How many years would it take to make the trip?
In a terrestrial frame of reference, a star is 56 light-years away. How fast would a person have to travel so that the distance to him is only 35 light-years?
G=GMm/r² where f is magnitude of the force m and m are the sizes of each mass r is the distance between the masses and G is a constant if both M and r are halved keeping all other values constant what is the ratio of the new force F1 to the original force f0 (F1/f0
Two balls A and B, weighing 49 N each, approach each other, with speeds of 20 m/s and 30 m/s respectively. Determine their speeds after the collision if (a) the coefficient of restitution is 0.80, and (b) they are completely inelastic.
Water flows through a venturi meter which contracts from D = 300 mm to
d = 150 mm at the rate of 0.0037 m3
/s and the differential gauge has a
deflection, h of 1 m, as shown in the figure below. Specific gravity of the
gauge liquid is 1.25. Determine the coefficient of discharge of the meter.
Determine vector A x C if A = 5i - 4j and B = 5i + 2j
A golf ball is driven with an initial velocity of 161 fps
upward at 30 ̊ to the horizontal from an elevated tee
64.4 feet above a level fairway. What horizontal
distance will the ball travel before hitting the fairway
a box starting from rest and slides down an inclined plane with uniform acceleration and travels 9 m in 3 s. in what time from rest will it acquires a velocity of 24m/s down the plane
#339914 on Dec 2023