Question

A particle move with velocity v1 for time t1 and v2 for time t2 along a straight line. the magnitude of its average acceleration is 1) v2-v1/t1-t2 2) v2-v1/t1+t2 3) v2-v1/t2-t1 4) v1+V2/t1-t2

Answer 1

Answer:

Three blocks of masses m  

1

​  

=1kg,m  

2

​  

=2kgandm  

3

​  

=3kg are placed in contact on a horizontal frictionless surface. A force F=12N is applied to mass m  

1

​  

. The acceleration of the system is

Explanation:

Answer 2

Explanation:

(final velocity - initial velocity) / (final time -initial time)

i.e. V2- V1/ t1 -t2

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