A particle moves in a circle of radius 20 cm. Its linear speed is given by v = 2t, where t is second and v in metre/second. Find the radial and tangential acceleration at t = 3 s.
A
ar=1.8m/s2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
ar=180m/s2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
at=6m/s2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
at=2m/s2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is Dat=2m/s2 The linear speed at t = 3 s is
v = 2t = 6 m/s
The radial acceleration at t = 3 s is ar=v2r=180m/s2
The tangential acceleration is at=dvdt=2m/s2