D is the correct answer!!
At 1 because the cart is still at the top
Answer:
Explanation:
Rx = -28.2 units
Ry = 19.6 units
magnitude of R = √ [( - 28.2 )² + ( 19.6 ) ]
= √ ( 795.24 + 384.16 )
= 34.34 units
If θ be the angle measured counterclockwise from the +x-direction
Tanθ = 19.6 / - 28.2 = -0.695
θ = 180 - 34.8
= 145.2° .
<span>12-50t=70t, t= 0.1h = 6 minutes.</span>
Energy in a machine can be something technical like a wire or something went wrong with the system