Question

Physics questions of kinematics​

Answer 1

Explanation:

x = t^2/2

y = x^/2 = t^4 /8

At t = 2 sec

Vy = dy/dt = t^3 /2 = 4 j^

Vx = dx/dt = t = 2 i^

So answer = 2 i + 4 j (option b)

Answer 2

x = t^2/2

y = x^/2 = t^4 /8

At t = 2 sec

Vy = dy/dt = t^3 /2 = 4 j^

Vx = dx/dt = t = 2 i^

So answer = 2 i + 4 j (option b)