Question

PASSAGE
A particle of mass 1 kg is tied with a string of length of 1m as shown in
figure. The particle is released from position A with string taut. The
particle undergoes circular motion in the vertical plane (g = 10 m/s²)
2.
The tension in the string at the lowest position is
(B) 14 N
(A) 10 N
(C) 18 N.
(D) none of these
3.
The centripetal acceleration of particle at the lowest position is
(A) 2 m/s
(B) 1 m/s2
(C) 0 m/s?
(D) none of these
4.
The tangential acceleration at particle at the lowest position is
(A) O
(B) 2 m/s?
(C) 1 m/s
(D) none of these​

Answer 1

Answer:

2. Tension at lowest position will be equal to gravity

T = mg = 1×10 = 10 N

4. tangential acceleration will be zero because its a uniform circular motion.