Question

A particle is moving in the xy plane according to the equation (in SI units)

x = 4t² + 5t + 16

y = 5t

Then the acceleration of the particle is –

• A. 8 m/s²
• B. 13 m/s²
• C. 14 m/s²
• D. 32 m/s²

Answer 1

Answer: (A)

8 m/s²

Answer 2

a_{x =} $\frac { \mathrm { dv } _ { \mathrm { x } } } { \mathrm { dt } }$ and v_x = $\frac { \mathrm { dx } } { \mathrm { dt } }$

a_y = $\frac { d v _ { y } } { d t }$ and v_y = $\frac { \mathrm { dy } } { \mathrm { dt } }$