Question

a body moving down an inclined plane has velocities of 5 m/s and 20 m/s at the top and buttom of plane respectively. calculate the acceleration if it complete the journey in 3s.​

Answer 1

▶ Solution :

Given :

▪ Velocity of body at the top = 5mps

▪ Velocity of body at the bottom = 20mps

▪ Time interval = 3s

To Find :

▪ Acceleration of the body.

Concept :

✒ Acceleratio is defined as the ratio of change in velocity to the time interval.

✒ It is a vector quantity.

✒ It has both magnitude as well as direction.

✒ Since acceleration is constant throughout the whole journey we can apply equation of kinematics directly.

✒ First equation of kinematics is given by

☞ a = (v - u)/t

• a denotes acceleration
• v denotes final velocity
• u denotes initial velocity
• t denotes time interval

Calculation :

→ a = (v - u)/t

→ a = (20-5)/3

→ a = 15/3

→ a = 5m/s^2

Answer 2

pls Refer the attachment

I hope this helps ( ╹▽╹ )