Questions
The x and y coordinates of the particle at any time are x = 5t - and y = 10t respectively, where x and y are in metres and t in seconds. The acceleration of the particle at t = 2 is
detailed solution
Correct option is B
x=5t-2t2, y=10tdxdt=5-4t, dydt=10 ∴ vx=5-4t, vy=10dvxdt=-4, dvydt=0 ∴ ax=-4, ay=0 Acceleration, a→=axi^+ayj^=-4i^∴ The acceleration of the particle at t=2 s is -4 ms-2Talk to our academic expert!
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