The position of a 2.75×105N2.75×105N training helicopter under test is given by r⃗ =(0.020m/s3)t3i^+(2.2m/s)tj^−(0.060m/s2)t2k^r→=(0.020m/s3)t3i^+(2.2m/s)tj^−(0.060m/s2)t2k^
Find the net force on the helicopter at t=5.0st=5.0s.

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The position of a 2.75×105N2.75×105N training helicopter under test is given by r⃗ =(0.020m/s3)t3i^+(2.2m/s)tj^−(0.060m/s2)t2k^r→=(0.020m/s3)t3i^+(2.2m/s)tj^−(0.060m/s2)t2k^ Find the...
The position of a squirrel running in a park is given by r⃗ =[(0.280m/s)t+(0.0360m/s2)t2]i^+ (0.0190m/s3)t3j^. At 4.75 s , how far is the squirrel from its initial position? At 4.75 s , what is the magnitude of the squirrel's velocity? At 4.75 s , what is the direction (in degrees counterclockwise from +x-axis) of the squirrel's velocity?
The position of a squirrel running in a park is given by r⃗ =[(0.280m/s)t+(0.0360m/s2)t2]i^+ (0.0190m/s3)t3j^. 1-At 4.27 s , how far is the squirrel from its initial position? Express your answer to three significant figures and include the appropriate units. 2-At 4.27 s , what is the magnitude of the squirrel's velocity? Express your answer to three significant figures and include the appropriate units. 3-At 4.27 s , what is the direction (in degrees counterclockwise from +x-axis) of the squirrel's...
A radio-controlled model airplane has a momentum given by [(−0.75kg⋅m/s3)t2+(3.0kg⋅m/s)]i^+(0.25kg⋅m/s2)tj^, where t is in seconds. What is the x-component of the net force on the airplane? What is the y-component of the net force on the airplane? What is the z-component of the net force on the airplane?