Question

A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the *xy* plane. The 9.00-kg puck has a velocity of 2.00 î m/s at one instant. Eight seconds later, its velocity is (6 î + 16 ĵ) m/s.

a) Assuming the rocket engine exerts a constant horizontal force, find the components of the force.

b) Find its magnitude.

Step 1

The initial velocity of the puck is 2.00im/s, and the final velocity is (6i+16j)m/s.

(a)Write the expression for the components of velocity.

Step 2

Write the expression for the horizontal component, and vertical component of velocity.

Step 3

Hence the expression for fo...

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