Practice mode / Physics The force beared by a wall on which water strikes normally at a speed of 10m/sec and at a discharge of 0.0001m3/sec is? A Option A: 1 N B Option B: 10 N C Option C: 100 N D Option D: none Correct answer A. 1 N Show answer Report a problem How we write and check questions
Question 01 / Physics When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are? A Option A: 5m/s, 1m/s B Option B: 3m/s, 3m/s C Option C: 6m/s, 1m/s D Option D: 4m/s, 2m/s Correct answer A. 5m/s, 1m/s Show answer Open question
Question 02 / Physics Which of the following is not an example of projectile motion? A Option A: a gas filled ballon B Option B: bullet fired from gun C Option C: a football kicked D Option D: a base ball shot Correct answer A. a gas filled ballon Show answer Open question
Question 03 / Physics The acceleration in the rocket at any instant is proportional to the nth power of the velocity of the expelled gases. Where the value of n must be? A Option A: -1 B Option B: 1 C Option C: 2 D Option D: -2 Correct answer B. 1 Show answer Open question
Question 04 / Physics A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10? A Option A: 14 m B Option B: 20 m C Option C: 5 m D Option D: 25 m Correct answer A. 14 m Show answer Open question
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