I don\'t need the work shown , I just need the answers Please help I need this t
ID: 1836017 • Letter: I
Question
I don't need the work shown , I just need the answers Please help I need this to pass the class !15. The position of an object as a function of time is given in meters by x (at+ bi)t + (cr)j. What is its velocity as a function of time? A) v = (a + b)I + (c)j C) v = (a + 2br) + (3c)j A large cannon is fired from ground level over level ground at an angle of 35° above the horizontal. The muzzle speed is 950 m/s. Neglecting air resistance, the projectile will travel what horizontal distance before striking the ground? A) 55 km 16. B) 67 km C) 87 km D) 75 km 17. Velocity is defined as: rate of change of velocity with time A) C) B) D) speed divided by time a speeding up or slowing down C rate of change of position with time A car rounds a 20-m radius curve at a speed of 10 m/s. The magnitude of its acceleration is: A) 10 m/s2 rate of change of position with time 18. B) 2.5 m/s C) 5.0 m/s D) 2.0 m/s2 19. Which of the following is not a vector quantity? B) Velocity C) Density D) Acceleration A) Force
Explanation / Answer
15)B
16)C
17)C
18) C
19) C
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