• The initial speed of N is _______________ that of Q. • The time of travel of Q

Question

• The initial speed of N is  _______________ that of Q.
• The time of travel of Q is _______________ that of N
• The initial speed of R is  _______________ that of Q.
• The time of travel of P is _______________ that of R
• The time of travel of Q is _______________  that of R.
• The initial speed of P is  _______________ that of R.

The options are: greater than, less than, or equal to.

select one option only.

The labeled graphs below represent the upward trajectories of 4 upwards on in free flight. Note that al 4 bodies reach the same maximum height (9 meters) after traveling from the same initial elevation (0 m) 10 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Relative horizontal position x, (m) The initial speed of N is equal to that of O The time of travel of Q is ess than that of N The initial speed of R is ess than that of Q The time of travel of P is ess than that of R The time of travel of Q is equal to that of R The initial speed of P is equal to that of R Add hint text here. Submit Answer Incorrect. Tries 7/12 Previous Tries

Explanation / Answer

Step 1

Here N and Q both reach same elevation(9 m ) with starting from same elevation (0) . thats means their vertical component of velosity is sme , but as N moves 6 times greater horizontal distance than Q , therefore initial velosity of N is greater than Q

Step 2

as vertical velosity same but the path traverse by Q is less than N , therefore travel time for Q is less than N

Step 3

As Q and R cover same vertical and same horizontal distance , and also inclined plane is frictionless , therefore their initial speed is equal

Step 4

time of travel of P is greater than R

Step 5

initial speed of P is = initial speed of R

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