Objective questions based on kinematics

Assignment Help Physics

Reference no: EM1311617

Question 1. A 20 N horizontal force is applied to a 4.0 kg box. The box moves a horizontal distance of 3.0 meters. The work done by the 20 N force is ...?

60 J
80 J
120 J
140 J
100 J

Question 2. Convert these to radian measure: (a) 30.0°, (b) 135°, (c) 1/4 revolution.

(a) 0.501 rad; (b) 2.36 rad; (c) or 1.05 rad
(a) 0.524 rad; (b) 2.27 rad; (c) or 1.57 rad
(a) 0.524 rad; (b) 2.36 rad; (c) or 1.05 rad
(a) 0.524 rad; (b) 2.36 rad; (c) or 1.57 rad
(a) 0.501 rad; (b) 2.27 rad; (c) or 1.05 rad

Question 3. An arrow is shot into the air at an angle of 60.0° above the horizontal with a speed of 20.0 m/s. (a) What are the x- and y-components of the velocity of the arrow 3.0 s after it leaves the bowstring? (b) What is the displacement of the arrow in the y-direction during the 3.0-s interval?

(a) 10.0 m/s and -12 m/s (b) 6 m
(a) 10.0 m/s and -12 m/s (b) 8 m
(a) 12.0 m/s and -10 m/s (b) 8 m
(a) 12.0 m/s and -10 m/s (b) 6 m

Question 4. A roller coaster is towed up an incline at a steady speed of 0.50 m/s by a chain parallel to the surface of the incline. The slope is 3.0%, which means that the elevation increases by 3.0 m for every 100.0 m of distance along the surface. The mass of the roller coaster is 400.0 kg. Neglecting friction, what is the magnitude of the force exerted on the roller coaster by the chain?

510 N
205 N
120 N
335 N
80 N

Question 5. A runner runs three-quarters of the way around a circular track, of radius 60.0 m, when she collides with another runner and trips. (a) How far had the runner traveled on the track before the collision? (b) What was the magnitude of the displacement of the runner from her starting position when the accident occurred?

(a) 292 m (b) 78.6 m
(a) 265 m (b) 93.4 m
(a) 278 m (b) 86.8 m
(a) 283 m (b) 84.9 m

Reference no: EM1311617

Questions Cloud

Computation of net investment and net operating cash flows : Computation of net investment and net operating cash flows and what is the after-tax net operating cash flow for each of the five years

Calculating real gdp and price level : Compute the path of the economy, that is , calculate real GDP, the price level, the inflation rate and real money stock for each year until GDP I swithin 1% of the potential. (limit calculated values to 10 decimals points)

Value of the test statistic : Compute the value of the test statistic (to 2 decimals).

How much overhead was incurred for the month : Determine the overhead rate is 25 percent of raw materials used plus 50 percent of direct labor costs and How much overhead was incurred for the month?

Objective questions based on kinematics : Objective questions based on kinematics.

An individual''s perception on leadership : This paper elaborate an individual’s views on leadership. The main purpose of this paper for you to describe in your own words your leadership thoughts and philosophy

Describing name of parts of regression equation : Write down the name of 4 parts of the regression equation.

Considering hypothesis test : A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3.

Evaluate the cost of job order costing system : Evaluate the Cost of Job order costing system and The company made the following estimates at the beginning of the current year.

User Account

All Pages