A particle thrown up vertically reaches its highest point in time
t1 and returns to the ground in a further time t2. The air resistance
exerts a constant force on the particle opposite to its direction of
motion.
a. t1>t2
b. t1=t2
c. t2>t1
(d) May be (a) or (c) depending on the ratio of the force of air
resistance to the weight of the particle.
Answers
Answered by
6
Answer:
t1 = t2
Explanation:
A particle thrown up vertically reaches its highest point in time
t1 and returns to the ground in a further time t2. The air resistance
exerts a constant force on the particle opposite to its direction of
motion.
t1 = t2
as there are only two forces acting on the particle
one is air resistance & other is gravity
air resistance is opposite to direction of motion so always opposite.
Gravity is Fixed acceleration / deceleration
Hence Object will accelerate decelerate with same speed
And reaches back with same velocity as thrown upwards and hence
t1 = t2
Similar questions