The potential energy (in SI units) of a particle of mass 2 kg in a conservative field is U = 6x – 8y. If the initial velocity of the particle is 
= – 1.5 
+ 2 
then find the total distance (in meter) travelled by the particle in first two seconds.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(15)
Sol. F = – 
– 
= – [6 
] + [8] 
= – 6 
+ 8 
= –3 
+ 4 
has same direction as that of 
| 
| = 5
| 
| = 5/2
Since 
and 
are in same direction, particle will move along a straight line
S = 
× 2 + 
× 5 × 2 2 = 5 + 10 = 15m.
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