Review Part A The boy jumps off the flat car at A with a velocity of v = 4 ft/s relative to the car as shown. He lands on the second flat car B. Each car has a weight of 74 lb . The boyD's weight is 60 lb. Both cars are originally at rest. Neglect the mass of the caros wheels. (Figure 1) Determine the speed of car A. Express your answer to three significant figures and include the appropriate units. Ti HA ? ft VA = 1.499 Submit Previous Answers Request Answer Figure < 1 of 1 > X Incorrect; Try Again; 5 attempts remaining Part B Determine the speed of car B. Express your answer to three significant figures and include the appropriate units. Value Units

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I Review
Part A
The boy jumps off the flat car at A with a velocity of
v = 4 ft/s relative to the car as shown. He lands on the
second flat car B. Each car has a weight of 74 lb . The
boyD's weight is 60 lb. Both cars are originally at rest.
Neglect the mass of the carOs wheels. (Figure 1)
Determine the speed of car A
Express your answer to three significant figures and include the appropriate units.
?
ft
VA = 1.499
S
Submit
Previous Answers Request Answer
Figure
1 of 1
X Incorrect; Try Again; 5 attempts remaining
Part B
v = 4 ft/s
Determine the speed of car B.
Express your answer to three significant figures and include the appropriate units.
HA
?
VB =
Value
Units
Transcribed Image Text:I Review Part A The boy jumps off the flat car at A with a velocity of v = 4 ft/s relative to the car as shown. He lands on the second flat car B. Each car has a weight of 74 lb . The boyD's weight is 60 lb. Both cars are originally at rest. Neglect the mass of the carOs wheels. (Figure 1) Determine the speed of car A Express your answer to three significant figures and include the appropriate units. ? ft VA = 1.499 S Submit Previous Answers Request Answer Figure 1 of 1 X Incorrect; Try Again; 5 attempts remaining Part B v = 4 ft/s Determine the speed of car B. Express your answer to three significant figures and include the appropriate units. HA ? VB = Value Units
Expert Solution
Step 1

This can be solved using conservation  of momentum  according  to which total initial  momentum  is  equal to total Final momentum 

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