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27 Nov 2019
A particle moves in the xy plane with constant acceleration. Attime zero, the particle is at x = 10.0 m, y = 4.0 m, and hasvelocity v = 2.0 m/s + -4.0 m/s . The acceleration is given by thevector a = 8.0 m/s2 + 8 m/s2 .
(a) Find the velocity vector at t = 7.0 s.
( m/s)i + ( m/s) j
(b) Find the position vector at t = 1.0 s.
( m)i + ( m)j
(c) Give the magnitude and direction of the position vector in part(b).
m
° (counterclockwise from the +x-axis)
A particle moves in the xy plane with constant acceleration. Attime zero, the particle is at x = 10.0 m, y = 4.0 m, and hasvelocity v = 2.0 m/s + -4.0 m/s . The acceleration is given by thevector a = 8.0 m/s2 + 8 m/s2 .
(a) Find the velocity vector at t = 7.0 s.
( m/s)i + ( m/s) j
(b) Find the position vector at t = 1.0 s.
( m)i + ( m)j
(c) Give the magnitude and direction of the position vector in part(b).
m
° (counterclockwise from the +x-axis)
