Answers

2015-08-23T10:37:24+05:30
By using
V=U+AT
we get the speed at 10s is 7m/s and the distance traveled can be found out by using
 S=UT+1/2AT^2.
which is 60 meters .
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2015-08-23T15:20:06+05:30
Initial speed, u= 5 m/s 
acceleration, a= 0.2 m/s
time taken, t= 10s
speed of the motorcycle after 10 s, v = u + at
                                                      = 5 + 0.2 × 10               
                                                      = 5 + 2
                                                   v  = 7 m/s
 
distance, s = ut + 1/2 at²  
                 = 5 × 10 + 1/2 × 0.2 × 10 × 10    
                 = 50 + 1/2 × 20
                 = 50 + 10
              s = 60 m
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