Question

Question 10 : if Vector P = 5i -2j and Q=3i+3j and R=4i-j . What is P+Q+R?
12i
14i
7i
6i
Question 11 : If you run on a winding path from point A to point B and travel a distance of 240m in 20sec then your average speed is
20m/s
6m/s
12m/s
16m/s
Question 12 : When a body accelerates in motion it means that its
path is linear
velocity is uniform
velocity changes continously
None of these
Question 13 : The scalar product of any two vectors at right angles to each other is always
90
None of these
zero
1
Question 14 : If a force of 40N acting in the direction due East and a force of 30N is acting in the direction due North. Then the magnitude of the resultant forces will be
30N
40N
20N
50N