A 7.0 kg object experiences a net force of 21 N that changes its velocity from 5.0 m/s to 11 m/s. How long did the force act? Round your answer to the nearest tenth.
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Q: object’s final speed
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- A 1.0 kg object has a velocity of 5.0f m/s at t = 0. A constant resultant force of (3.0î + 4.0f ) N then acts on the object for 3.0 s. What is the magnitude of object's velocity at the end of the 3.0 s interval? A B D E 9.8m/s 17.7m/s 9.2 m/s 15.0 m/s 16.3 m/s Lütfen birini seçin: O A O B O C O D O EOn an essentially frictionless, horizontal ice rink, a skater moving at 4.0 m/s encounters a rough patch that reduces her speed by 44% due to a friction force that is 28% of her weight.A 0.2 kg softball is thrown straight up with an initial speed of 9 m/s. How high in meters does it go? Round to two significant figures.
- A 105-kg rugby player is initially running at 7.5 m/s in the positive direction, but collides head-on with a padded goalpost and experiences a backward force of 1.76 × 104 N for 5.55 × 10–2 s. Calculate the final velocity in the horizontal direction of the rugby player, in meters per second. vf =A baseball player hits a bunt during which the bat is in contact with the ball for 0.0005 s. If the bat applies a force of 3,000 N to the 0.15 kg baseball, what is the change in the ball's velocity? Your answer should be in units of m/s but you should only submit the number for your answer (and don't worry about negative signs, just use a positive value).Your answer is partially correct. The only force acting on a 4.5 kg body as it moves along the positive x axis has an x component F,= -4x N, where x is in meters. The velocity of the body at x = 1.4 m is 10 m/s. (a) What is the velocity of the body at x = 3.2 m? (b) At what positive value of x will the body have a velocity of 2.0 m/s? (a) Number 9.62 (b) Number 1.94 eTextbook and Media Units Units m/s m
- vo t = 0 t = 3.5 s vo = (2.5i + 3.5j) m/s i = (-2.51) m/s The velocity of a 3.0-kg object is shown at two times. What was the magnitude of the average force exerted on the object between t= 0 and t = 3.5s? O 1.74 N O 6.26 N O 14.7 N O 3.23 N O 0.845 NFour arrows, all with the same shape and size, are shot directly upward. Ignore the effect of air resistance, but the arrows have different masses and are fired with different speeds. Rank them from highest to lowest in terms of the greatest height that they will reach. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.) 0.0750 kg, vinitial = 18.0 m/s 0.125 kg, Vinitial A. mass = %3D B. mass = 16.0 m/s C. mass = 0.0500 kg, Vinitial 20.0 m/s D. mass = 0.100 kg, vinitial = 22.0 m/sWhat is the magnitude of the average force, in newtons, exerted on a 0.0295-kg bullet to accelerate it to a speed of 590 m/s in a time of 1.85 ms?