A point P moves in counter-clockwise direction on a circular path as shown in the
figure. The movement of ' P ' is such that it sweeps out a length 
, where 
is in meters and t is in seconds. The radius of the path is 20 m. The acceleration of ' P ' when 
is nearly.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
S = t 3 + 5
Linear speed of the particle
v = 
= 3 t 2 at t = 2 s I j v = (3 × 2
2 ) m/s = 12 m/s
Linear acceleration a 1 = 
= 6 t
at t = 2 s, I j a 1 = 12 m/s 2
The centripetal acceleration
a 2 = 
= 
m/s 2 = 7.2 m/s 2
a net = 
= 
= 14 m/s 2
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
No similar questions found.