A body moves on a coordinate line such that it has a position s= f(t) = - 41 + 3 on the interval 0sts3, with s in meters and t in seconds.a. Find the body's speed and acceleration at the endpoints of the interval.b When, if ever, during the interval does the body change direction?The body's speeds at the left and right endpoints of the interval are(Type integers or simplified fractions.)m/s and m/s, respectively.The body's accelerations at the left and right endpoints of the interval arem/s and m/s, respectively.(Type integers or simplified fractions.)When, if ever, during the interval does the body change direction? Select the correct choice below and fill in any answer boxes within your choice.O A. The body changes direction at t=(Type an integer or a simplified fraction.)O B. The body does not change direction during the interval.S.

If the distance of a body undergoing motion is expressed as a function of time, say st then the…

A body moves on a coordinate line such that it has a positions=f(t) = - 4t + 3 on the interval Osts3, with s in meters and t in seconds. a. Find the body's speed and acceleration at the endpoints of the interval. b When, if ever, during the interval does the body change direction? The body's speeds at the left and right endpoints of the interval arem/s and m/s, respectively (Type integers or simplified fractions.) The body's accelerations at the left and right endpoints of the interval arem/s andm/s, respectively. (Type integers or simplified fractions.) When, if ever, during the interval does the body change direction? Select the correct choice below and fill in any answer boxes within your choice. O A. The body changes direction at t= (Type an integer or a simplified fraction.) O B. The body does not change direction during the interval.

A body moves on a coordinate line such that it has a positions=f(t) = - 4t + 3 on the interval Osts3, with s in meters and t in seconds. a. Find the body's speed and acceleration at the endpoints of the interval. b When, if ever, during the interval does the body change direction? The body's speeds at the left and right endpoints of the interval arem/s and m/s, respectively (Type integers or simplified fractions.) The body's accelerations at the left and right endpoints of the interval arem/s andm/s, respectively. (Type integers or simplified fractions.) When, if ever, during the interval does the body change direction? Select the correct choice below and fill in any answer boxes within your choice. O A. The body changes direction at t= (Type an integer or a simplified fraction.) O B. The body does not change direction during the interval.