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27 Nov 2019
Starting from rest at a dock, a motor boat on a lake heads northwhile gaining speed at a constant 3.4 m/s2 for 21 s. The boat thenheads west and continues for 10.5 s at the speed that it had at 21s.
(a) What is the average velocity of the boat during the 31.5-strip?
v av = ( m/s) + ( m/s)
(b) What is the average acceleration of the boat during the 31.5-strip?
a av = ( m/s2) + ( m/s2)
(c) What is the displacement of the boat during the 31.5-strip?
?r = ( m)i + ( m)j
Starting from rest at a dock, a motor boat on a lake heads northwhile gaining speed at a constant 3.4 m/s2 for 21 s. The boat thenheads west and continues for 10.5 s at the speed that it had at 21s.
(a) What is the average velocity of the boat during the 31.5-strip?
v av = ( m/s) + ( m/s)
(b) What is the average acceleration of the boat during the 31.5-strip?
a av = ( m/s2) + ( m/s2)
(c) What is the displacement of the boat during the 31.5-strip?
?r = ( m)i + ( m)j
