These are practice questions for a test review. I needthese ASAP please and will

Question

These are practice questions for a test review. I needthese ASAP please and will certainly give lifesaver for detailedsolutions. 1. A 5kg block is suspended from the cieling of an an elevatoras the elevator accelerates downward at 3.0 m/s squared. What isthe tension force on the block? 2. A 1 Newton pendulum bob is held at an angle fromthe vertical by a 2 newton horizontal force F. The tension in thestring supporting the pendulum bob is what? 3. A car moves horizontally with a constant accel of 3 m/ssquared. A ball is suspended from the ceiling of the car by astring. the ball does not swing being at rest with respect to thecar. What angle does the string make with the vertical? Again detailed answers will get lifesaver ratingimmediately!! These are practice questions for a test review. I needthese ASAP please and will certainly give lifesaver for detailedsolutions. 1. A 5kg block is suspended from the cieling of an an elevatoras the elevator accelerates downward at 3.0 m/s squared. What isthe tension force on the block? 2. A 1 Newton pendulum bob is held at an angle fromthe vertical by a 2 newton horizontal force F. The tension in thestring supporting the pendulum bob is what? 3. A car moves horizontally with a constant accel of 3 m/ssquared. A ball is suspended from the ceiling of the car by astring. the ball does not swing being at rest with respect to thecar. What angle does the string make with the vertical? Again detailed answers will get lifesaver ratingimmediately!!

Explanation / Answer

1. since it is moving downwards it will be F= m* (g-3) = 5*6.8 = 34N 2. It is the vectorial sum of weigth and applied force =22+12 =5 3. The angle is arctan (a/g) = 17 degrees

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