A 958-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 35.0 m/s, What is the average force exerted on the car during this time? kN eastward

Only one force acts on an object.Can the object have zeroacceleration? Can it have zero velocity? Explain.

A 3.00-kg object is moving in a plane, with its x and y coordinates given by x = 5t2 - 1 and y = 313 + 2, where x and y are in meters and t is in seconds. Find the magnitude of the net force acting on this object at t = 2.00 s.

Compute the total force to be exerted on the object given the indicated parameters.

The net force on an object is in the positive x-direction. Consider the following statements. (i) The object can be moving in the negative x-direction. (ii) The object can be speeding up. (iii) The object can be slowing down. (iv) The object can be moving in the positive y-direction.   (i) and (ii)   (ii) and (iii)   (iii) and (iv)   all the statements are true.

A force of magnitude F acting in the x-direction on a 1.0-kg particle varies in time as shown in the figure. Find the final velocity of the particle if it is initially moving along the x-axis with a velocity of 2.0 m/s. F(N) 20 000 15 000 10 000 5 000 0 F = 18 000 N 1 2 3 O a. 11.5 m/s Ob. None of these choices. O c. 17.5 m/s O d. 27.5 m/s O e. 13,500 m/s O f. 15.5 m/s t (ms)

A small car gets into a head on collision with an 18-wheeler. During the collision, which vehicle has a larger magnitude force acting on it? During the collision which vehicle's acceleration has the larger magnitude? Explain your answers.

A horizontal force of magnitude F, causes an acceleration of magnitude 3.0"/2 when it acts on an object of mass m sliding on a frictionless surface. the same object in the circumstances shown in Figure Find the magnitude of the acceleration (a) and Figure (b) Fo Fo Fo 45 2F o 90 (a) (b) Draw a sketch defining x- and y- axes. Without this sketch the problem will be considered as not-solved!!!

A dog and a sledge are on the frictionless ice of a frozen lake, 11.6 m apart but connected by a rope of negligible mass. The dog exerts a certain horizontal force (N) on the rope. If magnitudes of the sledge and the dog accelerations are o.8 m/s and o.2 m/s2, respectively. How far from the dog's initial position (m) do they meet?

A 850-kg car slows to rest from a speed of 82.5 km/h in a distance of 105 m. Consider that the car is initially traveling in the positive direction. A)If the brakes are the only thing making the car come to a stop, calculate the force (in newtons, in a component along the direction of motion of the car) that the brakes apply on the car. B) Suppose instead of braking that the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force, in newtons, exerted on the car in this case. C) What is the ratio of the force on the car from the concrete to the braking force?